Gravity Initiative

The TAP Gravity Initiative brings together researchers from astronomy and physics to study the fundamental laws of gravity and their manifestation in the observable universe, primarily in the extreme environments of black holes and neutron stars.  Our members perform theoretical, computational, and observational studies of these extreme physical systems.

Visit the websites of Gravity Initiative Co-Chairs Sam Gralla and Vasileios Paschalidis for more information about current research and publications.

TAP Gravity Lectures

Neal Dalal, Perimeter Institute for Theoretical Physics

The Gravity and Cosmology Initiatives will jointly host Neal Dalal, February 15-21, as part of the TAP Lectureship Series.

A TAP Cosmology/Gravity Lecture is scheduled for Monday, February 19, 10:00am. More information and lecturer’s schedule can be found at TAP Lectureships.

Aaron Zimmerman, University of Texas at Austin

Aaron Zimmerman will visit March 21-30, 2024, hosted by Sam Gralla and Vasilis Paschalidis.

A TAP Gravity Lecture will be scheduled during the visit. More information and lecturer’s schedule can be found at TAP Lectureships.

Opportunities to Engage

Meetings

Email co-chairs Sam Gralla or Vasileios Paschalidis for meeting times and locations.  

Talks

The Gravity Initiative will host guest lecturers for Spring 2024. More information and lecturer’s schedule can be found at TAP Lectureships. Join the Gravity listserv for up-to-date information.

 

 

Listserv

Don’t miss important news and events. Sign up for the Gravity listserv here.

 

Images

Volume rendering of rest-mass density (color coded) for a circumbinary accretion disk around a binary black hole with spinning black holes.  The magnetic field lines (white) are those intersecting the black hole horizons. Twin jets are visible above and below each black hole (see inset for a zoomed-in view). The black spheres indicate the resolved black hole apparent horizons in the simulations. Source: Paschalidis et al. The Astrophysical Journal Letters, 910:L26, 2021

Credit: SXS, the Simulating eXtreme Spacetimes (SXS) project (http://www.black-holes.org)