European Einstein Toolkit Workshop 2017, Mallorca, Spain

The 2017 European Einstein Toolkit Workshop in Mallorca will provide an opportunity for researchers and students interested in numerical relativity to learn about the Einstein toolkit and discuss about its current and future development. The Einstein Toolkit is a publicly-available framework used by many research groups in the world, with applications ranging from high-energy astrophysics to cosmology.

The first three days will be dedicated to presentations and discussions concerning the development and applications of the Einstein Toolkit and will be open to developers and anyone interested in numerical relativity, numerical (magneto-)hydrodynamics, cosmology, gravitational wave data analysis and related fields. The workshop will present recent developments and allow for discussions about future directions of code development and applications.

Friday evening and Saturday will be devoted to a special event – “Black Holes, Red Square, and Blue Waters: A Symposium in Honor of Edward Seidel’s 60th Birthday (EdFest)”.

Both the workshop and the symposium will take place at the Club Pollentia Resort near Alcudia in Mallorca.

North American Einstein Toolkit School and Workshop at NCSA, Urbana, Illinois

The North American Einstein Toolkit School and Workshop will be hosted this year that NCSA, at the University of Illinois at Urbana-Champaign from July 31 to August 4, 2017 (

The Einstein Toolkit is a publicly available framework used by several numerical relativity groups in the world, with applications ranging from high-energy astrophysics to cosmology.

This meeting is open to anyone interested in numerical relativity and computational astrophysics and cosmology and in particular to Einstein toolkit users.

There will be a 3 day school from July 31 to August 2, 2017 that will introduce students and postdocs to the Einstein Toolkit and numerical methods related to it.

After that, on August 3 to August 4, 2017, the Einstein Toolkit workshop will cover the most recent developments of the toolkit, offer the possibility for collaboration and discussions about future plans.

Individual registrations for each of the school and workshop are now open on There, you will also find information on available hotels, hotel sharing and a tentative program. Information on financial support is available on the registration page. The initial deadline for applying for support is June 1, 2017.

Separate registration is required for each of the school and the workshop. When registering for the school you have the option of listing topics of interest for the school and your level of expertise. For the workshop you can suggest discussion topics as well as register a title and abstract for a 5 minute presentation you would like to give.

The Einstein Toolkit community in Europe will host a two day meeting in Palma de Mallorca, Spain October 11-13.

For further information please do not hesitate to contact the organizers at

Einstein Toolkit EU School and Workshop, Trento, Italy (2nd announcement)

The annual European Einstein Toolkit Workshop will be hosted this year at the University of Trento from June 16 to 17.

The Einstein Toolkit is a publicly available framework used by several numerical relativity groups in the world, with applications ranging from high-energy astrophysics to cosmology.

This meeting is open not only to Einstein toolkit developers, but also to anyone interested in numerical relativity and computational astrophysics and cosmology. The workshop will cover the most recent developments of the toolkit and discussions about future plans.

This year the workshop will be also preceded by a school (registration for the school is now closed) that will introduce students and postdocs to the Einstein Toolkit and in particular to its general relativistic magnetohydrodynamic (GRMHD) code GRHydro.

People interested in the workshop are strongly encouraged to register soon and book an hotel as soon as possible. Trento is a popular tourist destination in June and some hotels are already full.

For further information please do not hesitate to contact any of the organizers:

Bruno Giacomazzo (University of Trento, Italy)
Eloisa Bentivegna (University of Catania, Italy)
Riccardo Ciolfi (University of Trento, Italy)
Frank Loeffler (Louisiana State University, USA)

Registration is now open for the Einstein Toolkit EU School and Workshop 2016, Trento, Italy

Dear colleagues,
we would like to announce that registration for the upcoming Einstein Toolkit EU Summer School and Workshop is now open.

The school and workshop will take place in Trento from June 13th to 17th, 2016. Please visit the event page to submit your registration. Participation, as always, is free of charge, but the school is limited to the first 20 students who sign up. Workshop participants who would like to contribute to the program may propose a title for a short talk. The registration deadline for either section is May 27th.

We hope to see many of you in Trento this summer! Should you have any questions regarding registration, travel, or accommodation, feel free to contact one of the organizers.

Black Holes and Friends 2, Shanghai, China

First Announcement

Black holes and neutron stars are a fascinating class of objects in our Universe and an ideal laboratory to test fundamental physics, because characterized by conditions that cannot be easily reproduced on Earth. The workshop will focus on stellar-mass black holes in X-ray binaries, AGNs, GRBs, neutron stars, and pulsars. The program will include invited talks, contributed talks, and time for free discussions.

Invited Speakers (list in progress):
Hua Feng (Tsinghua)
Matteo Guainazzi (JAXA/ISAS)
Zhiquian Shen (SHAO) *
Junxian Wang (USTC) *
Feng Yuan (SHAO) *
Shu Zhang (IHEP)
Shuang-Nan Zhang (IHEP) *

* To be confirmed

The Next Detectors for Gravitational Wave Astronomy, 5-week workshop, KITPC, Beijing

The first detection of gravitational waves by ground-based detectors in the 10Hz – 10 kHz frequency band is expected after advanced gravitational wave detectors now being installed and commissioned reach their full sensitivity, between 2016-2020. Signals from the known population of binary neutron stars are expected, as well as signals from other sources such as binary black holes. In addition to ground-based detectors, space based detectors for the millihertz band are under active development, pulsar timing observatories are searching for gravitational waves in the nanohertz band, and studies of the cosmic microwave background are searching for evidence for gravitational waves at ~10-16 Hz. The need for an expanded array of ground-based detectors is well understood. Expansion of the array and particularly the addition of a southern hemisphere detector will greatly improve angular resolution, array duty cycle, source galaxy identification, and source parameter estimation. The expanded array should be designed to maximise the science outcomes of gravitational wave astronomy in regard to both the fundamental testing of general relativity and astrophysical observations.

New approaches and new technologies for ground based gravitational wave detectors have been under development for a number of years. Proposed designs for future detectors were considered by the Einstein Telescope collaboration and by LIGO Scientific Collaboration “colour groups” in 2010-2012.

This KITPC Program will bring leading experts in gravitational wave astrophysics, gravitational wave detector science and engineering, quantum opto-mechanics, precision optics, fine mechanics and materials science together in a 5 week program focused on designing the next ground based detectors, and special sessions and workshops on the optimum design for space based detectors.

Future detector designs depend crucially on key enabling technologies in which there has been intense theoretical and experimental research over recent years. These include

– theory of acoustic noise and development of optical materials that combine ultralow acoustic noise and optical losses,
– theory and technology for Newtonian gravitational noise reduction,
– theory and implementation of macroscopic quantum measurement techniques.

Considerations for evaluating different detector arrays include: a) knowledge and modelling of signal sources; b) modelling of detector array performance in relation to source parameter extraction and signal to noise ratio; c) methods of data analysis; d) capabilities and performance of multi-messenger astronomy techniques.

Finally, design choices for the next ground based detectors will depend on practical considerations that include the time scale for achieving performance requirements, understanding of the risks associated with design choices, and cost trade-offs versus funding opportunities.

Week 1 will focus on the entire gravitational wave spectrum including regions targeted by pulsar timing, space laser interferometers, atom interferometers and ground based detectors. It will review the current knowledge of sources, detectors and data analysis, and identify critical areas of research in the physics of sources, gravitational wave detector science and multimessenger astronomy.

Week 2 will include the Third Beijing Workshop on Gravitational Waves (held at Tsinghua University, Beijing). The program of this workshop is centered on the following themes:

– Detection of gravitational waves: instruments, signal analysis, data analysis,…
– Gravitational wave sources: neutron star binaries, black hole binaries,…
– Multi-messenger astrophysics: optical, X-ray, or gamma ray counterparts, neutrinos,…
– Other gravitational-wave related themes (supporting computing architecture,…)

Weeks 3-4 will explore the possibilities for realistic designs for the next ground based detectors, plus workshop to explore space detector designs and their synergy with ground based detectors. Sessions will include:

– Quantum measurement technologies based on optical squeezing and optical spring effects;
– Core technologies including laser wavelength, test mass material, optical coatings, detector configurations, vacuum and cryogenics, and control systems.
– Broadening the sensitivity bandwidth (<10Hz, >3kHz) and multimessenger astronomy.
– Interferometer arm length: vacuum and cost/sensitivity trade-offs. Space detector workshop topics will include:
– Technology: high-power space qualified lasers, ultra-stable oscillators, pointing, sensors, UV discharging, time delay interferometry.
– Mission design: layout, armlength, orbit.
– Sources, data analysis and multimessenger astronomy: galaxy and black hole evolution, optical counterparts, EMRI templates, TeV signatures and dark energy.

Week 5 will focus on the programme outcomes: completion of the science case and conceptual design for the next ground based detectors. Publication: The outcomes will be published as a special issue of a refereed journal containing a single multi-authored design paper on the next ground based detector, a multi-authored review on space detectors and short individual contributions. Week 5 will also organize an international conference on gravitation and cosmology jointed with the 4th Galileo-Xu Guangxi meeting, to celebrate GR 100

About 50 international participants and 100 participants from China are expected to attend the KITP Program, which will take place on the Campus of the CAS-KITP in Beijing. The program will include formal presentations, workshops and informal working groups along the lines of Aspen workshops. The draft program below will be modified according to advice from the IAC and Coordinating Committee and availability of participants. Funding details for participants will be given in the second announcement.

International Organizing Committee
David Blair, Junwei Cao, Zhoujian Cao, Yanbei Chen, Yun-song Piao, Wen Zhao, Zong-Hong Zhu

Workshop on Collapsing Objects, Shangai, China

Fudan University, Shangai, China
21-24 October 2013

During the gravitational collapse of a massive star, matter can reach extreme conditions, which are impossible to create in any laboratory on the Earth. In those cases in which nothing can stop the collapse, General Relativity predicts the formation of a spacetime singularity, where predictability is lost and standard physics breaks down. The study of collapsing objects is a fascinating area of research and can shed light on the behavior of matter at very high densities and of gravity in the strong field regime.

Main topics:
– Supernovae
– Gamma Ray Bursts
– Binary System Coalescences
– Detection of Electromagnetic Radiation, Neutrinos, and Gravitational Waves from Collapsing Objects
– Gravitational Collapse in General Relativity and in Alternative Theories of Gravity
– Cosmic Censorship Conjecture

Invited Speakers:
Manuela Campanelli* (RIT, US)
Vitor Cardoso (CENTRA/IST, Portugal)
Pankaj Joshi (Tata Institute, India)
Robert Mann* (Waterloo U & PI, Canada)
Peter Meszaros* (Penn State, US)
Ken’ichiro Nakazato (TUS, Japan)
Tsvi Piran* (Hebrew U, Israel)
Georg Raffelt* (MPP, Germany)
Luciano Rezzolla* (AEI, Germany)
* To be confirmed

Cosimo Bambi (Fudan, China), Chair
Lingyao Kong (Fudan, China)
Zilong Li (Fudan, China)
Daniele Malafarina (Fudan, China)