More info: external link
Date: 2018-07-16 - 2018-07-19
Location: Penn State, University Park, PA, USA

Dynamical Horizons, Binary Coalescences, Simulations and Waveforms (2nd announcement), Penn State, USA

SECOND ANNOUNCEMENT:

The Institute for Gravitation and the Cosmos will hold a Focus Session to discuss novel ideas at the interface of post-Newtonian methods, horizon dynamics, numerical simulations and data analysis to create new tools to test the dynamical regime of full, non-linear general relativity through gravitational waves. It will be held at Penn State, University Park campus from July 16-19, 2018. The main session program will be over on July 18 but we will have additional information discussions on July 19.

Recently, interesting ideas have been put forward to extract information about the progenitors of compact binary collisions from gravitational wave signals using, e.g., post-Newtonian methods. There is potential to connect the post-Newtonian inspiral phase to the beginning of the formation of the common dynamical horizon, and then relate the non-linear process by which the dynamical horizon settles down to the waveforms seen in detectors. The Focus Session will bring together expertise in four areas with the hope of making significant advances: Post-Newtonian methods, mathematical GR, numerical GR and data analysis.

There will be a few talks in each area to bring everyone to the same wavelength and most of the session will be devoted to discussions aimed at cross-fertilization of ideas. Details on scientific organization will be available in due course.

Confirmed participants include: K.G. Arun, Abhay Ashtekar, Sina Bahrami, Eugenio Bianchi, Ofek Birnholtz, Ivan Booth, Ssohrab Borhanian, Manuela Campanelli, Ding Ding, Deborah Ferguson, Patrick Godwin, Anuradha Gupta, Brennan Ireland, Jose-Luis Jaramillo, Neev Khera, Bhavesh Khomesra, Lawrence Kidder, Badri Krishnan, Pablo Laguna, Cody Messick, Purnima Narayan, B. Sathyaprakash, Deirdre Shoemaker, Andrey Shoom and Yosef Zlochower.

Scientific Program

Monday, July 16

Morning: PN Session
09:00 – 10:00 K. G. Arun: 40 minutes Overview talk + 20 minutes discussion
What has been accomplished; Different kinds of approximations; Open issues
10:00 – 11:00 Discussion Session – Leader: B. Sathyaprakash
One hour: Testing GR using PN results
11:00 – 11:30 Coffee break
11:30 – 12:30 Discussion Session Continued (One hour) Interface between PN and NR

12:30 – 02:00 Lunch Break

Afternoon: NR Session
02:00 – 03:00 Pablo Laguna: 40 minutes Overview talk + 20 minutes discussion
What has been accomplished; Waveform predictions; Parameter space
03:00 – 04:00 Discussion Session – Leader: Deirdre Shoemaker
One hour: Black hole spectroscopy
04:00 – 04:30 Coffee break
04:30 – 05:30 Discussion Session – Leader: Yosef Zlochower
One hour: Evolution of binaries and parameter estimation

Tuesday, July 17

Morning: DH Session
09:00 – 10:00 Badri Krishnan: 40 minutes Overview Talk + 20 minutes discussion
Basic notions and numerical simulations
10:00 – 11:00 Discussion Session – Leader: Abhay Ashtekar
One hour: Multipoles; hair; relation to null
11:00 – 11:30 Coffee Break
11:30 – 12:30 Discussion Session – Leader: Jose Luis Jaramillo
DHs and Null infinity as screens

12:30 – 02:00 Lunch Break

Afternoon: PN, NR and DHs
02:00 – 03:00 B. Sathyaprakash: 40 minutes Overview Talk + 20 minutes discussion
Phenomenological and Effective 1 Body models

03:00 – 04:00 Discussion Session – Leader: Larry Kidder
Modeling: Interface of analytical and numerical methods
04:00 – 04:30 Coffee Break
04:30 – 05:30 Discussion Session – Leader: Pablo Laguna
DHS and NR
7:00 Banquet

Wednesday, July 18

Morning: Data Analysis
09:00 – 10:00 K. G. Arun: 40 minutes Overview Talk + 20 minutes discussion
Algorithms for testing GR and alternative theories
10:00 – 11:00 Discussion Session – Leader: B. Sathyaprakash
Data analysis challenges for testing GR
11:00 – 12:30 Breakout Discussion Session (3 groups)
Leaders: B. Krishnan, P. Laguna, K. G. Arun
12:30 – 02:00 Lunch Break
02:00 – 03:30 Breakout Discussion Session Continued (3 groups)
Leaders: Jose-Luis Jaramillo, Larry Kidder, B. Sathyaprakash
03:30 – 05:00 Reports from the three groups and closing discussion
Chair: Abhay Ashtekar

Thursday, July 19
Morning: Informal Discussions

Sponsors:
This Focus Session is supported by the Pittsburgh Foundation through its Urania Stott Fund and the Eberly College of Science.