# 22nd Eastern Gravity Meeting, Dartmouth, USA

This annual regional meeting is open to researchers of all levels, from undergraduate students to faculty, in all areas of gravitational physics, including classical, quantum, theory, observation, and computation. The purpose of the conference is to encourage the interaction of researchers in the Northeastern region, although participants from all regions are welcomed.

The format of the meeting will follow the format of previous regional meetings where all participants may present a talk of approximately 10 to 15 minutes. Abstracts will be selected according to the order in which they are submitted. Therefore, to maximize chances of acceptance, it would be best to submit an abstract early. There is no registration fee but, for an accurate head count, registration is mandatory.

A prize for the best talk by a student will be given and so please indicate in your registration if you are a student.

# European Einstein Toolkit Meeting, London, UK

The next European Einstein Toolkit Workshop and School will take place from 2 – 6 September 2019 at King’s College London, UK.

The meeting will offer a school on the first two days introducing new users on how to install and run the Einstein Toolkit, and useful post-processing and visualizations tools. We furthermore provide a platform for ample discussion within the Einstein Toolkit community and with our friends in the broader numerical relativity community. In the second half of the week, the workshop will highlight exciting science cases and the latest developments in numerical relativity.

The registration is now open. If you wish to give a talk, please submit a title+abstract together with your registration. The registration and abstract submission deadline is on 31 July 2019. There is no registration fee. Note, that we currently cannot offer any travel support.

We are looking forward to welcoming you in London.

Scientific Organizing Committee:
Steve Brandt, Bruno Giacomazzo, Roland Haas, Bhavesh Khamesra, Helvi Witek and Miguel Zilhao

Local Organizing Committee:
Josu Aurrekoetxea, Matthew Elley, Giuseppe Ficarra, Eugene Lim and Helvi Witek

# Post-Doctoral Researcher on cosmic rays, University of Kansas, USA

Applications are invited for a post-doctoral researcher position in high energy nuclear physics with the University of Kansas beginning as early as July 1, 2019 or until the position is filled. This position will be in residence at the University of Kansas in Lawrence, Kansas. Post-doctoral researcher candidates are required to have a Ph.D. in physics by date of appointment and research experience in detector development or a related experimental field. Successful candidates will contribute in several aspects of the nuclear group’s research program in developing new Si detectors to measure cosmic rays in space in collaboration with NASA. The goal of the project is to define the best possible compact detector to be sent into space using a detailed simulation, to build the detector, and to test it. Candidates with relevant interests and experience are sought. For more information and to apply go to https://employment.ku.edu/staff/14158BR.

A complete online application will include a Cover Letter, Curriculum Vitae (including publications list), Statement of Research Interests and Skills. Also please have at least three letters of recommendation emailed to Prof. Christophe Royon (christophe.royon[AT]ku.edu) or mailed to Department of Physics & Astronomy, 1251 Wescoe Hall Drive, Room 1082, Malott Hall, Lawrence, KS 66045 USA.

Review of applications will begin April 25, 2019. For first consideration, please apply before this date. Inquiries can be made by email to christophe.royon[AT]ku.edu.

The University of Kansas prohibits discrimination on the basis of race, color, ethnicity, religion, sex, national origin, age, ancestry, disability, status as a veteran, sexual orientation, marital status, parental status, retaliation, gender identity, gender expression and genetic information in the University’s programs and activities. The following person has been designated to handle inquiries regarding the non-discrimination policies and is the University’s Title IX Coordinator: the Executive Director of the Office of Institutional Opportunity and Access, IOA[AT]ku.edu, Room 1082, Dole Human Development Center, 1000 Sunnyside Avenue, Lawrence, KS, 66045, (785) 864-6414, 711 TTY.

# Postdoctoral Positions in Gravitational or Statistical Physics at the Institute for Physics and Mathematics, Morelia, Mexico

The Gravitation and Statistical Physics Group at the Institute of Physics and Mathematics of the University of Michoacan, Morelia, Mexico has a number of postdoctoral positions available, starting September 2019. The positions are funded by PRODEP or CONACyT and they are available for one year with a possible extension for another year.

The Gravitation and Statistical Physics Group currently consists of five faculty members (F. Astorga, U. Nucamendi, O. Sarbach, L. Tessieri and T. Zannias), one associate professor (E. Tejeda), one postdoc (P. Sheroan) and several graduate students. The current research areas of the group include the following topics:

Mathematical and Numerical Relativity

Physics and Astrophysics of Black Holes and Compact Objects

Cosmology

Relativistic Hydrodynamics and Thermodynamics

Relativistic Kinetic Theory

Disordered Systems and Anderson localization

Interested candidates should send their current cv and a short research proposal of a maximum of two pages to Dr. Ulises Nucamendi (ulises[AT]ifm.umich.mx) before May 15th, 2019. Due to restrictions imposed by the funding agencies, this announcement is directed to candidates that have obtained their Ph.D degree within the past two years. We particularly encourage applications from women, minorities and indigenous candidates.

# POTOR-6: 6th Conference of the Polish Society on Relativity, Szczecin, Poland

Dear Colleagues,

We invite you to register for our conference “6th Conference of the Polish Society on Relativity” – POTOR-6 which will take place in Szczecin, Poland from 23rd to 26th September 2019.

The abstract submission deadline is June 30th, 2019. The registration deadline is 31st July 2019. Full information is available on our webpage: https://indico.cern.ch/event/773241/overview

Conference email is: potor6[AT]gmail.com

The 6th Conference of the of the Polish Society on Relativity is organised by the Szczecin Cosmology Group on behalf of Polish Society on Relativity. The conference is the regular annual meeting of the Society which is open to international invited speakers and participants.

The conference covers all aspects of classical relativity as well as related fields including contemporary theories of unification and quantum gravity. Topics include: Theoretical and numerical relativity. Black holes: classical and quantum aspects. Relativistic cosmology. Early universe, dark matter, and dark energy problems. Gravitational waves. Approaches to quantum gravity. Quantum cosmology. Relation of relativity and superstring theory.

Invited speakers are:

Jan de Boer (University of Amsterdam, Holland) (TBC)
Joseph Conlon (University of Oxford, UK)
Salvatore Capozziello (Universita’ di Napoli “Federico II” and INFN Napoli, Italy)
Jacques Delabrouille (APC, Observatoire de Paris, France)
Jose Antonio Font (University of Valencia, Spain)
Yongee Ma (Beijing Normal University, China)
Hermann Nicolai (AEI, Golm, Germany)
Tsvi Piran (Hebrew Univ., Jerusalem, Israel) (TBC)
Edward Porter (APC, Paris, France)
Jorge Pullin (Lousiana State Univ., USA)
Masaru Shibata (Yukawa Institute, Kyoto, Japan; Garching, Germany)
Massimo Tinto (Univ. San Diego, USA)

We are looking forward to seeing you in Szczecin.

Yours faithfully,

Mariusz P. Dabrowski (Scientific Committee chair)

# The 29th Workshop on General Relativity and Gravitation in Japan, Kobe, Japan

JGRG is a series of workshops held in Japan every year since 1991, which has provided a place where people can exchange ideas and pursue future trends of research. The workshop will cover a wide area of research related to general relativity and gravitation.

A tentative list of invited speakers is given below.

Manuela Campanelli (Rochester Institute of Technology)
Cedric Deffayet (IHES)
Hong Liu (MIT)*
Sabino Matarrese (INFN)
Kentaro Miuchi (Kobe U.)
Alexei A. Starobinsky (Landau Institute for Theoretical Physics)
Alexander Vikman (Prague, Inst. Phys. )
Alexander Vilenkin (Tufts U.)
[KAGRA]*
[LIGO]*
and more ….
*=to be confirmed

Important information is the following:

Registration will be open from 10 July 2019.
Application for visa:15 September 2019
Participants who apply for travel expenses support: 15 September 2019
Participants who apply for presentation: 1 October 2019
All other participants: 15 October 2019
25 Novemner 2019: JGRG29 start

Scientific Organizing Committee

Hideki Asada (Hirosaki), Takeshi Chiba (Nihon U.), Tomohiro Harada (Rikkyo U.), Kunihito Ioka (YITP, Kyoto), Akihiro Ishibashi (KindaiU.), Hideki Ishihara (Osaka City U.), Sugumi Kanno (Osaka), Masahiro Kawasaki (ICRR, Tokyo), Tsutomu Kobayashi (Rikkyo U.), Yasufumi Kojima (Hiroshima), Kei-ichi Maeda (Waseda U.), Shinji Mukohyama (YITP,Kyoto), Takashi Nakamura (Kyoto), Ken-ichi Nakao (Osaka City U.) Yasusada Nambu (Nagoya), Toshifumi Noumi(Kobe), Ken-ichi Oohara (Niigata), Misao Sasaki (Kavli IPMU, Tokyo), Masaru Shibata (AEI &YITP, Kyoto), Tetsuya Shiromizu (Nagoya), Jiro Soda (Kobe), Naoshi Sugiyama (Nagoya), Teruaki Suyama (Tokyo Tech), Hideyuki Tagoshi (ICRR, Tokyo), Takahiro Tanaka (Kyoto), Masahide Yamaguchi (Tokyo Tech), Kazuhiro Yamamoto (Kyusyu), Ryo Yamazaki (Aoyama Gakuin U.), Jun’ichi Yokoyama (RESCEU, Tokyo)

________________________________

Local Organizing Committee

Department of Physics, Graduate School of Science, Kobe University
Jiro Soda (Chair), Toshifumi Noumi, Daisuke Yoshida, Kazufumi Takahashi, Asuka Ito, Daiske Yoshida

# Postdoctoral positions in Gravitation, Astrophysics, Cosmology and Fundamental Interactions at CBPF, Rio de Janeiro, Brazil

A call is now open for various postdoctoral positions at the Brazilian Center for Physics Research / Centro Brasileiro de Pesquisas Físicas (CBPF) in Rio de Janeiro, Brazil. Rio de Janeiro has a dynamic scientific atmosphere, with several research-intensive Universities and independent centres, like CBPF, which is one of the top research institutions in Physics in South America. In particular, CBPF recently created a new department of Astrophysics, Cosmology and Fundamental Interactions – COSMO, with 9 faculty members carrying out research comprising (but not limited to) the following areas: gravitational waves; gravitational lensing; theoretical and observational cosmology; black hole physics; quantum field theory; supersymmetry; nuclear astrophysics.

We particularly encourage candidates with research interests in the above fields to apply for a postdoctoral position at COSMO. The available positions are: two “senior” ones (with a monthly stipend of Brazilian R$5,120 net), for candidates who finished a Ph.D. at least two years ago, and a “junior” one (with a monthly stipend of R$4,160 net). The starting date can be chosen among any of: July 1, August 1 and September 1, 2019, and the length of each position is 1 year, subject to renewal every year up to 5 years. The application procedure consists of filling in the form in https://portal.cbpf.br/educacao-cientifica/pci/capacitacao-institucional/inscricao and emailing it to pci@cbpf.br with a deadline of 30/04/2019. However, since the form requires the signature of a CBPF professor who is to be the postdoc advisor, anyone interested should first get in touch with one of the professors in https://portal.cbpf.br/educacao-cientifica/pci/capacitacao-institucional/projetos-supervisores within “Pesquisa em Cosmologia, Astrofísica e Interações Fundamentais” (COSMO) as soon as possible – for details about the profiles of the COSMO researchers, please see http://www.cbpf.br/~mcasals/index.html. If in doubt, you may email Prof. Marc Casals at mcasals@cbpf.br for assistance.

http://www.cbpf.br/~mcasals/Postdoc.html
https://portal.cbpf.br/educacao-cientifica/pci/capacitacao-institucional/pag-inicial

# Postdoctoral position in numerical relativity at Rhodes University, South Africa

The appointment is for up to two years with a starting date as soon as possible and a salary of R220 000 per year, to work on a project “Cauchy Characteristic Matching, and Other Uses of the Characteristic Method in Numerical Relativity”. In particular, we are seeking to further develop our matching code, which uses the Cactus framework with a BSSN code in the interior and a characteristic code in the exterior. The faculty members involved in this project are:

Chris Stevens – see https://www.ru.ac.za/mathematics/people/staff/chrisstevens/
Background information about the Department and the University can be found at https://www.ru.ac.za/mathematics/

Please apply via e-mail attaching a single PDF file that contains a letter of application, and a CV with a list of publications and a statement of accomplished research. The application should include the date of award of the PhD degree; and if not yet formally awarded, please explain your current status and the expected date of formal award of the degree. Please also arrange for 2 letters of recommendation to be sent in support of the application. All these items should be emailed to n.bishop[at]ru.ac.za with subject “Postdoc Application – Candidate name”.

This is a re-announcement of the position, and applications will be considered until the position is filled.

# Postdoc in Mathematical Physics, Dijon, France

Applications are invited for a post-doctoral researcher position in mathematical physics with the University of Burgundy beginning as early as September 1, 2019 or until the position is filled.

This position will be at the Institute of Mathematics in Dijon.

Post-doctoral researcher candidates are required to have a Ph.D. by date of appointment and research experience in mathematical physics.

# Armenian-Italian Science Day “Joint ICRANet activities in Relativistic Astrophysics”, Yerevan, Armenia

The Armenian-Italian Science Day event “Joint ICRANet activities in Relativistic Astrophysics” is a one day conference which will take place in Yerevan on April 15, 2019.

The event will be held in the National Academy of Sciences both in Armenian and in English, and has been organized thanks to the collaboration among ICRANet, the National Academy of Sciences of Armenia (NASRA) and the Italian Embassy in Yerevan.

Institutional representatives from Armenia and from several other countries will be present and address the morning session. After lunch, there will be a series of conferences by eminent Professors and researchers, who will illustrate the most recent scientific developments on which ICRANet is working on.

You can find more details about the event on our webpage: http://www.icranet.org/Armenian-ItalianScienceDay.

# 16th Italian-Korean Symposium on Relativistic Astrophysics, Pescara, Italy

The 16th Italian-Korean Symposium on Relativistic Astrophysics will be held at ICRANet center in Pescara from July 1 – 5, 2019. The Italian-Korean Symposia on Relativistic Astrophysics is a series of biannual meetings, alternatively organized in Italy and in Korea since 1987.

The symposia discussions cover topics in astrophysics and cosmology, such as gamma-ray bursts and compact stars, high energy cosmic rays, dark energy and dark matter, general relativity, black holes, and new physics related to cosmology.

For the scientific program and the list of participant, please consult ICRANet webpage (http://www.icranet.org/index.php?option=com_content&task=view&id=1234).

# Gravity and Other Fields Under the Volcano, Catania, Italy

We are pleased to announce the workshop “Gravity and Other Fields Under the Volcano” which will take place on June 10-12 in Catania.

The workshop aims at developing and strengthening connections between scientists working on the topics of beyond standard model and gravitational physics. Among several things, we want to bring together colleagues which are interested in developing extensions of the standard model, and eventually accommodate their unification with gravity through the mechanism of asymptotic safety.

https://agenda.infn.it/event/18116/overview

Please note that the workshop will host a limited number of participants.

Looking forward to seeing you in Catania,

Dario Benedetti, Alfio Bonanno, Gian Paolo Vacca, Dario Zappala’, Omar Zanusso

# International School on Gravity, Cosmology and Astrophysics, Moscow, Russia

The Department of Physics of Bauman Moscow State Technical University (BMSTU) is organizing the International School on Gravity, Cosmology, and Astrophysics for undergraduate and graduate students, which will be held at BMSTU on July 1-14, 2019.

The School has invited well-known professors from different countries to do lectures on gravity, cosmology, and astrophysics.

The main objective of the School being discussing advances in the exploration of the Universe focusing on the main issues, ideas and research methods in the theory of gravity and cosmology.

On July 1, 2019 School participants will be invited to listen to plenary talks by world-famous scientists at the Conference on the Theory of Relativity (PIRT-2019).

The School will host a competition of projects entitled A New Generation Gravitational Wave Detector. The winners of the competition will be awarded prizes while all School participants will be granted certificates of participation.

# Summer school on Einstein Equations: Physical and Mathematical Aspects of General Relativity, Domodossola, Italy

The aim of the school is to provide a common ground to PhD students and young researchers in physics and mathematics to meet and learn different viewpoints on various aspects of Einstein equations.

Lectures will be given by

Lars Andersson – Albert Einstein Institute (Max-Planck Institute for Gravitational Physics), Potsdam, Germany

Donato Bini – La Sapienza University (Rome) and C.N.R.

Marco Giammarchi – Istituto Nazionale di Fisica Nucleare (I.N.F.N.) – Sezione di Milano

Pengzi Miao – University of Miami, Miami, Florida

Alexei Starobinski – Landau Institute for Theoretical Physics, Moscow, Russia & Russian Academy of Sciences.

# Workshop on gravitational-wave parameter estimation with PyCBC Inference, Portsmouth, UK

This workshop will provide an introduction to Bayesian Inference and its application to gravitational-wave astronomy, with a specific focus on the PyCBC Inference toolkit. PyCBC Inference is an open-source, python-based parameter estimation tool for gravitational wave astronomy. It has been used in several publications to date, involving both multimessenger astrophysics, and tests of general relativity. The toolkit may be used either with proprietary LIGO/Virgo data, or with publicly available data at the Gravitational Wave Open Science Center (GWOSC).

The goal of the workshop is to provide attendees with enough understanding of Bayesian inference and a practical knowledge of PyCBC Inference such that they can use the toolkit for a variety of analyses on gravitational-wave data. We will mix traditional presentations with hands-on tutorials, and will have time reserved for small-group projects. Topics covered will be:
* Introduction to parameter estimation in gravitational-wave astronomy.
* Overview of stochastic sampling techniques, including tests of convergence and practical considerations.
* Parallelization and optimization techniques.

The workshop is open to all students, postdocs, and faculty who have an interest in using gravitational wave parameter estimation for their own research projects. For more details and registration please visit http://www.icg.port.ac.uk/2019/04/workshop-on-gravitational-wave-bayesian-parameter-estimation-with-pycbc-inference/. There is no fee to attend.

# International Master in Mathematical Physics, Dijon, France

The Department of Mathematics of the Universite de Bourgogne offers a one- or two-year master program in Mathematical Physics.

Advanced students may be admitted to the 2nd year of the Master.

Students who will successfully complete the M.Sc. program will be encouraged to apply to one of the Ph.D. fellowships that will be available for pursuing their studied in Dijon at the doctorate level.

The student will be integrated from the very beginning into the mathematical physics group of the IMB (Institut de Mathematiques de Bourgogne) and will have to prepare by the end of their 2nd year a master dissertation under the supervision of a member of the Institute.

All the lectures will be given in English.

We will also provide several mini courses by the research visitors of the IMB as well as by invited professors in the framework of the Erasmus program.

*The tuition fees are of about 250 euros/year.*

We expect to have up to 10 fellowships for students.

The interested candidates are strongly advised to already get in touch with us, and send a cv to:

# Inflation and Geometry, Paris, France

Dear colleagues,

we are organizing a three-day workshop entitled Inflation and Geometry, in June at the Institut d’Astrophysique de Paris:

This workshop aims to explore the recent developments in the field of multifield inflation, with special emphasis on the role of the geometry of the field space manifold. There will be talks on selected topics and time for informal discussions, with the aim of favouring interactions and exchange of ideas amongst participants.

The workshop is supported by the ERC grant GEODESI, there is no registration fee, and the event will take place during the full three days.

Topics to be covered include:

– Non-standard attractors in curved field space

– Inflation with non-geodesic motion

– Geometrical destabilization of inflation

– Embeddings in high-energy physics

– Implications of the swampland conjectures

– (P)reheating in curved field space

We decided to keep the number of participants limited to favour interactions. If you wish to give a talk, or simply to attend the workshop, please e-mail one of the organisers before the 5th of May 2019.

Best regards,

Sébastien Renaux-Petel, Jacopo Fumagalli, John Ronayne, Lucas Pinol, Chantal Le Vaillant

# PhD position in Physics of Compact Stars at Coimbra/Lisbon, Portugal

We are seeking for an outstanding, highly motivated PhD candidate for a joint CFisUC, Universidade de Coimbra (Coimbra)/ CENTRA, Instituto Superior Tecnico (Lisbon) position under the supervision of Dr. Violetta Sagun and Prof. Ilidio Lopes on equation of state of compact stars, properties of strongly interacting matter and its phase transitions.

Interested candidates should upload through the IDPASC Network (https://www.idpasc.lip.pt) a curriculum vitae, a motivation letter, other documents that the candidate may consider relevant (diplomas, certificates etc..) and and up to three contacts for reference letters. The reference letters will be directly uploaded by the referees. Applicants will not have access to the letters content but they will be able to check if the reference letters have been uploaded and when. The Referees can upload the letters during the whole period of the Call.

Candidates should hold either a pre-Bologna degree, or a pre-/post-Bologna Master’s degree at the time of application. Students must complete the Master degree until 07th June, 2019.

Foreign degrees/diplomas are required to be recognised by the General Directorate of Higher Education or by a Portuguese higher education institution, in accordance with the Decree Law no. 341/2007, of 12 October and the Decree Law no. 283/83, of 21st June. http://www.dges.mec.pt/en/pages/naric_pages/academic_recognition/recognition_foreign_qualifications.html

Deadline for application: 18th April, 17h00 (Lisbon time).

Dr. Violetta Sagun, violetta.sagun[AT]uc.pt

# GRG Editor’s Choice: recent highlight articles

In each volume of the journal General Relativity and Gravitation (GRG), a few papers are marked as “Editor’s Choice”. The primary criteria is original, high-quality research that is of wide interest within the community. These recent articles deserves special attention:

Eric Addison, Miguel Gracia-Linares, Pablo Laguna, Shane L. Larson,
“Busting up binaries: encounters between compact binaries and a supermassive black hole”,
Gen Relativ Gravit (2019) 51: 38.
https://doi.org/10.1007/s10714-019-2523-4

Eva Hackmann, Arnab Dhani,
“The propagation delay in the timing of a pulsar orbiting a supermassive black hole”,
Gen Relativ Gravit (2019) 51: 37.
https://doi.org/10.1007/s10714-019-2517-2

Thomas P. Kling, Eric Grotzke, Kevin Roebuck, Harry Waite,
“Examining the Kerr metric through wave fronts of null geodesics”,
Gen Relativ Gravit (2019) 51: 32.
https://doi.org/10.1007/s10714-019-2518-1

Please, browse all Editor’s Choice articles at:
https://www.springer.com/gp/livingreviews/relativity/grg-editors-choice

Frank Schulz
Publishing Editor GRG

# COST GWverse: Exchange of researchers working on gravitational-wave and black hole physics

In the context of the European COST Action CA16104 on Gravitational waves, black holes and fundamental physics (GWverse), grants for short term scientific missions (STSMs) are available. We are inviting you to submit proposals for STMSs starting after May 1, 2019 and ending before Nov 30, 2019 (applications outside this timeframe will be discarded).

This call starts on Apr 1 and closes May 1, 2019. All proposals will be reviewed and the results will be announced by May 7, 2019.

The selection committee will take into account the geographical distribution of host and home institution, matching of funds by the host, the scientific proposal and the experience of the applicant (preference is given to Early Career Investigators).

Successful applicants will be expected to join as members of one (or more) of the Action’s Working Groups. STSM recipients should acknowledge the COST Action in any publication or talks, through the use of the COST logo and the statement “The authors would like to acknowledge networking support by the COST Action GWverse CA16104”.

STSMs are a great opportunity for all scientists within the COST Action to exchange visits, nurture collaborations, or develop new ones. Further details are available at the GWverse webpage: https://gwverse.tecnico.ulisboa.pt/stsms/

# Two PhD positions in Theoretical Physics at Wroclaw University, Poland

Two fellowships are available for Ph.D. studies at the Institute for Theoretical Physics, Wroclaw University, Poland. These fellowships require that the candidate fulfills the requirements for being accepted as a Ph.D. student at the Faculty of Physics of the Wroclaw University and that of International Max Planck Research School in Dresden, Germany.

The research themes are:

* Spectral Functions for Strongly Coupled Superfluids: from Ultra-Cold Gases to Dense Quark Matter
* Relativistic Hydrodynamics from Projection Operator Formalism

The applicants should submit for pre-selection a CV and other credentials to: asedrakian[AT]itf.uni.wroc.pl

# The Eighteenth Release of the Einstein Toolkit

The Eighteenth Release of the Einstein Toolkit

We are pleased to announce the eighteenth release (code name “Proca”) of the Einstein Toolkit, an open, community developed software infrastructure for relativistic astrophysics. The highlights of this release are:

New arrangements and thorns have been added:

* Proca

– NPScalars_Proca
– ProcaBase
– ProcaEvolve
– Proca_simpleID
– TwoPunctures_KerrProca

* lean_public

– LeanBSSNMoL
– NPScalars

* wvuthorns_diagnostics

– particle_tracerET
– Seed_Magnetic_Fields_BNS
– smallbPoynET
– VolumeIntegrals_GRMHD
– VolumeIntegrals_vacuum

In addition, bug fixes accumulated since the previous release in September 2018 have been included.

The Einstein Toolkit is a collection of software components and tools for simulating and analyzing general relativistic astrophysical systems that builds on numerous software efforts in the numerical relativity community including CactusEinstein, the Carpet AMR infrastructure and the relativistic magneto-hydrodynamics codes GRHydro and IllinoisGRMHD. For parts of the toolkit, the Cactus Framework is used as the underlying computational infrastructure providing large-scale parallelization, general computational components, and a model for collaborative, portable code development. The toolkit includes modules to build complete codes for simulating black hole spacetimes as well as systems governed by relativistic magneto-hydrodynamics.

The Einstein Toolkit uses a distributed software model and its different modules are developed, distributed, and supported either by the core team of Einstein Toolkit Maintainers, or by individual groups. Where modules are provided by external groups, the Einstein Toolkit Maintainers provide quality control for modules for inclusion in the toolkit and help coordinate support. The Einstein Toolkit Maintainers currently involve postdocs and faculty from six different institutions, and host weekly meetings that are open for anyone to join in.

Guiding principles for the design and implementation of the toolkit include: open, community-driven software development; well thought out and stable interfaces; separation of physics software from computational science infrastructure; provision of complete working production code; training and education for a new generation of researchers.

The Einstein Toolkit is primarily supported by NSF 1550551/1550461/1550436/1550514 (Einstein Toolkit Community Integration and Data Exploration). The Einstein Toolkit contains about 400 regression test cases. On a large portion of the tested machines, almost all of these tests pass, using both MPI and OpenMP parallelization.

The changes between this and the previous release include:

Larger changes since last release

* The Proca arrangement has been added: This repository provides the tools to evolve the Einstein-Proca system as first described in https://arxiv.org/abs/1505.00797.

– NPScalars_Proca: Implementation of the spin-1 (electromagnetic) and spin-2 (gravitational) Newman-Penrose scalars
– Proca_simpleID: Create analytic initial data for a non-rotating black hole surrounded by a Proca field with mass mu.
– TwoPunctures_KerrProca: A modified TwoPunctures thorn to construct initial data for a single rotating black hole coupled to a massive vector field.

* The Lean arrangement has been added:

– LeanBSSNMoL: Implementation to evolve Einstein’s Equations using the W-version of the BSSN formulation together with the puncture gauge. Also available, in the “new_gauge” branch, is a modified “Gamma- driver” that stabilizes highly rotating black hole spacetimes (adapted from Figueras et al; see: https://arxiv.org/abs/1512.04532).
– NPScalars: Implementation of the spin-2 Newman-Penrose scalars

* The WVU Diagnostics arrangement has been added: These thorns are designed primarily to add useful diagnostics for binary neutron star simulations performed with IllinoisGRMHD.

– NSNS_parameter_files Contains parameter files for magnetized and unmagnetized BNS evolutions.
– Seed_Magnetic_Fields_BNS Extended Seed_Magnetic_Fields thorn for binary neutron stars.
– VolumeIntegrals_GRMHD: GRMHD volume integration thorn, currently depends on IllinoisGRMHD and Carpet. Performs volume integrals on arbitrary “Swiss-cheese”-like topologies, and even interoperates with Carpet to track NS centers of mass.
– VolumeIntegrals_vacuum: Same functionality as VolumeIntegrals_GRMHD, but designed for integration of spacetime quantities. Depends on ML_BSSN and ADMBase for integrands.
– particle_tracerET Solves the ODE \partial_t x^i=v^i for typically thousands of tracer particles, using an RK4 integration atop the current time stepping.
– smallbPoynET Computes b^i, b^2, and three spatial components of Poynting flux. It also computes (-1-u_0), which is useful for tracking unbound matter.

* Ticket tracking system moved to bitbucket: https://bitbucket.org/einsteintoolkit/tickets/
* Subversion infrastructure for thorns is no longer maintained at LSU. Instead, the svn checkout mechanism supported by github.com is used.
* Llama supports tensorweights other than 1.0 or 0.0
* Added EinsteinAnalysis/Hydro_Analysis/Hydro_Analysis_Masses.F90 in order to compute the total baryonic mass and baryonic mass within user defined radii.
* A summary of changes Carpet:

– add support for very large grids where 64bit integer are needed for grid indices and sizes of transfer buffers
– fix how physical_time_per_hour is computed
– add functionality to align interior of grid functions to cache boundaries. This requires changes t. Cactus and PUGH as well.
– add a parameter “granularity” to make sure the interior of components is a multiple of N points in each direction

* The version of MPI bundled with the ET is now OpenMPI 1.10.7
* The SystemTopology thorn now supports hwloc 2.0

How to upgrade from Chien-Shiung Wu (ET_2018_09)

To upgrade from the previous release, use GetComponents with the new thornlist to check out the new version.

Machine notes

Supported (tested) machines include:

* Default Debian, Ubuntu, Fedora, CentOS, Mint, OpenSUSE and MacOS (MacPorts) installations
* Bluewaters
* Comet
* Golub
* Stampede 2
* Shelob
* Wheeler

* TACC machines: defs.local.ini needs to have sourcebasedir=$WORK and basedir=$SCRATCH/simulations configured for this machine. You need to determine $WORK and$SCRATCH by logging in to the machine.

All repositories participating in this release carry a branch ET_2019_03 marking this release. These release branches will be updated if severe errors are found.

The “Proca” Release Team on behalf of the Einstein Toolkit Consortium (2019-03-29)

* Steven R. Brandt
* Samuel D. Cupp
* Peter Diener
* Zachariah Etienne
* Roland Haas
* Helvi Witek

Mar, 2019

# PhD position in the International PPGCosmo Program on Astrophysics, Cosmology and Gravitation, Brazil

PPGCosmo is an international PhD program on Astrophysics, Cosmology and Gravitation that aims to give PhD students the opportunity to develop a successful international scientific career. The research topics range from theoretical to observational aspects of Astrophysics, Cosmology and Gravitation, including participation in collaborations such as LIGO, Euclid, J-PAS and DES. PPGCosmo is a Brazilian program consisting of six institutions from Brazil and four institutions from outside Brazil.

The call for applications for a 4-year PhD position starting in August 2019 is now open. The student will be supervised by a Professor at a Brazilian institution and co-supervised by a Professor at an institution outside Brazil. For the compulsory postgraduate courses the student will be mainly based in Vitoria (Espirito Santo, Brazil). It is expected that the student will have opportunities to visit the other Brazilian participating institutions and the co-supervisor’s non-Brazilian institution.

Please go to http://ppgcosmo.cosmo-ufes.org or http://www.cosmologia.ufes.br/en for further information.

# 22nd Capra Meeting on Radiation Reaction in General Relativity, Rio de Janeiro, Brazil (2nd announcement)

The 22nd Capra meeting on Radiation Reaction in General Relativity will be held at the Centro Brasileiro de Pesquisas Fisicas/Brazilian Center for Research in Physics (CBPF) in Rio de Janeiro, Brazil. The meeting will run from Monday June 17 until Friday June 21, 2019.

The Capra meetings focus on the modelling of black hole binary dynamics in the small mass-ratio limit. In good Capra tradition, the meeting will be of an informal nature with a mixture of invited reviews, contributed talks, and open discussions. There will be no registration fee or proceedings. Contributed talks on all aspect of modelling small mass-ratio systems are welcome.

For more information and registration please visit: http://www.cbpf.br/~mcasals/capra2019.html. As indicated on the website, some hotels are offering special prices for Capra participants, some with a booking deadline. Please note that the Capra meeting will take place during the soccer tournament Copa America (which is during 14/6-7/7) and so early booking of accommodation is advised.

The meeting is supported by CNPq and the Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior – CAPES – Brasil.

# Quantum and Gravity in Okinawa, Japan

Quantizing gravity has been one of the most difficult problems in physics. There have been many approaches to quantizing gravity, which have given us mathematically and physically interesting ideas, such as the unification of forces, the emergence of spacetime, the problem of time, spacetime foam, non-commutativity/non-associativity of spacetime, non-locality, holography, etc. Geometry, which initially found a link to gravity by Einstein has been playing a major role in the studies of quantum gravity. Quantum field theory (QFT), which gave us a tremendous success in describing the Standard Model including the weak, the strong and the electromagnetic forces, is also a central solid modern tool in describing physical systems with many degrees of freedom. QFT lets us explore critical phenomena and the scale dependence of the physics through the renormalization group.

In this conference, we focus on such pillars of modern physics which are tied together in the research of quantum gravity. We aim at creating an open versatile atmosphere in order to advance further in the better understanding of each approaches in order to understand the grand problems of quantum description of gravitation. We also aim at introducing such different approaches and topics to each other including students, therefore creating a platform to expose young generataions and also older generations to various ideas and communities. Therefore the talks are recommended to take blackboard-talk format.

Please apply for participating the conference by submitting application form with proposed titles and abstracts for talks/posters by April 30 2019.

# Agape 2019, Mezeyrac, France

It is our great pleasure to announce l’Agape 2019, the third edition of a summer-school of theoretical physics, which will be held in the mountains of the Massif Central (France) from July 27th to August 3rd 2019.

L’Agape sees a partition between six 4-hour courses given in the mornings and scientific activities in the afternoons. The series of courses covers a large field of topics in theoretical physics:

– Towards a more efficient model of particle physics by Cohl Furey (University of Cambridge)
– The two-fold role of observables in Classical and Quantum Kinematics by Federico Zalamea (EFREI Paris)
– Timeless statistical mechanics and applications to quantum gravity by Isha Kotecha (AEI Potsdam)
– Cosmological field theories by Scott Melville (University of Cambridge)
– Foundations of Quantum Theory by Emily Adlam (University of Cambridge) (to be confirmed)
– Introduction to (linear) logics for physicists by Titouan Carette (LORIA, Universite’ de Lorraine)

This school’s special appeal and particularity lies in the broad range of its topics, the creative format of the “scientific activities” and the horizontal structure of the organisation: everything, from the courses and talks to the cooking will be done by and for young physicists, and we will encourage each participant to actively engage in shaping the structure of l’Agape. Furthermore, this year we are offering participants the possibility to stay for three more days after the official end to continue the discussions and enjoy the surroundings.

You will find more details on the website https://agape2019.sciencesconf.org.

The organising committee:
Alexander Thomas, Jeremy Attard, Pierre Martin-Dussaud, Robin Reuben,Vaclav Zatloukal

# PhD positions in Theoretical Cosmology, University of New South Wales, Australia

The School of Physics at UNSW Sydney has two openings for PhD positions in Theoretical Cosmology.
The successful PhD candidates will work under the supervision of Dr. Ema Dimastrogiovanni on topics in theoretical cosmology, including primordial gravitational waves, inflation, reheating and cosmic microwave background physics.

Interested candidates should send a cover letter and a curriculum vitae, and arrange for two letters of recommendation to be sent to the same email address. Applicants must also provide evidence of English ability that meets the UNSW English language requirements (see https://www.unsw.edu.au/english-requirements-policy).

The internal selection deadline for application and recommendation letters is April 22.

# MPHYS10 Meeting, Belgrade, Serbia (1st announcement)

10th MATHEMATICAL PHYSICS MEETING:
School and Conference on Modern Mathematical Physics

to be held 9–14 September 2019 in Belgrade, Serbia. The MPHYS10 meeting is the latest in a long list of biannual conferences on mathematical physics organized by the Institute of Physics, University of Belgrade, since 2001. The conference covers a wide range of topics, mainly oriented towards recent developments in cosmology, classical and quantum gravity, quantum field theory, string theory, and related research areas of theoretical high energy and mathematical physics. The list of topics includes:

* Modern Cosmological Models
* General Relativity and Modified Gravity
* Accelerating Universe and Dark Energy
* Modern Approaches to Quantum Gravity
* Foundations of Quantum Theory and Quantum Gravity
* Conformal and String Field Theory
* Lie Theory and Symmetries in Physics
* Strings, Branes and String/M-Theory
* Noncommutative Quantum Models
* Nonperturbative Approaches
* Exact Integrable Models
* Mathematical Methods

Given that this is the 10th conference in a row, this year we are celebrating a jubilee. Some of our distighuished invited speakers include:

Alexei Starobinsky (Moscow, Russia)
Viatcheslav Mukhanov (Munich, Germany)
Sergei Odintsov (Barcelona, Spain)
Irina Arefeva (Moscow, Russia)
Paul Sorba (Annecy, France)
Loriano Bonora (Trieste, Italy)
Igor Volovich (Moscow, Russia)
Martin Cederwall (Goteborg, Sweden)
Djordje Minic (Blacksburg, USA)

and many others — please see the full list of participants on our website,

http://www.mphys10.ipb.ac.rs/

where you can also find other detailed information about the MPHYS10 meeting, as well as all previous meetings of the MPHYS series. The registration for the meeting is open until July 1st 2019, and we wish to invite everyone to join us and contribute to the meeting.

Cordially,
Dr. Marko Vojinovic
Group for Gravitation, Particles and Fields
Institute of Physics

# Kavli RISE Summer School on Gravitational Waves, Cambridge, UK

Kavli RISE Summer School on Gravitational Waves

September 23-27, 2019
Centre for Mathematical Sciences, University of Cambridge, UK

The Kavli Institute of Cosmology at Cambridge, together with support from the EU’s RISE project “Strong Gravity and High-Energy Physics”, will hold a summer school on gravitational waves at the Centre for Mathematical Sciences from Sep 23-27, 2019. This school is dedicated to introduce young scientists to the cutting edge methods and technology to explore our universe through gravitational wave observations.

Topics covered include the modeling of sources of gravitational waves with analytic and computational methods, gravitational wave detection and data analysis, testing alternatives to general relativity and black holes, dark matter candidates, electromagnetic counter parts and cosmological sources of gravitational waves. Each topic will be covered with 1 or 2 lectures of 90 minutes each.

The school is addressed at young researchers and students with background knowledge in general relativity.

Further details, including registration and accommodation options, can be found on the below URL.

# Postdoc in GR at Charles University, Prague, Czech Republic

Institute of Theoretical Physics, Faculty of Mathematics and Physics, Charles University in Prague invites applications for a postdoctoral position within Prague relativity group to a motivated person, working in the field of general relativity and/or its astrophysical or cosmological applications. More specifically, his/her doctoral expertise and research plan should be close to at least one of the following topics: mathematical relativity, problems of energy and radiation in GR, exact solutions of Einstein’s field equations and their interpretation, asymptotic structure of space-times, particles, bodies and fields in GR space-times, black holes, black-hole perturbations, neutron stars, relativistic celestial mechanics and approximation methods, numerical relativity, gravitational lensing, contemporary cosmology (cosmological models and their perturbations, dark matter and dark energy), physics and analysis of gravitational waves, quantum gravity and quantum cosmology.

We offer a position within a pleasant academic environment, with standard equipment and reasonable support for traveling. 1 year contract starting from October 2019 – January 2020 (negotiable), with a possible renewal in case of mutual interest. Salary will be comparable to a starting salary of an assistant professor at our Faculty.

Interested candidates should submit:
CV, research statement, list of publications, two letters of recommendation. Shortlisted candidates may be invited for an interview or seminar. Deadline is 28th June.

The submission should be sent to oldrich.semerak[AT]mff.cuni.cz (Oldrich Semerak).