Calendar

Add to Calendar 1/17/2018 12:00 pm 1/17/2018 America/Chicago Astrophysics, Gravitation and Cosmology Seminar: "Critical Phenomena in Gravitational Collapse to rotating black holes" DESCRIPTION:

Critical phenomena, i.e. the appearance of universal scaling laws and self-similarity in the vicinity of phase transitions, appear in different fields of physics and beyond.  Critical phenomena in gravitational collapse to black holes were first observed by Matt Choptuik about 25 years ago - a seminal discovery that launched a whole new field of research.  Until recently, however, much of this research was restricted to spherical symmetry, and therefore could not account for effects that break this symmetry, in particular rotation.  In this talk I will review the appearance of scaling laws and self-similarity close to the onset of black hole formation.  I will then present new numerical relativity simulations of the gravitational collapse of rotating perfect fluids, in the absence of spherical symmetry.  These simulations inform perturbative treatments of the problem, leading to the formulation of generalized scaling laws that take into account the role of angular momentum in the critical collapse to black holes.

\n\nSPEAKER:

Thomas Baumgarte, Bowdoin College

464 Loomis

false

Astrophysics, Gravitation and Cosmology Seminar: "Critical Phenomena in Gravitational Collapse to rotating black holes"

Speaker Thomas Baumgarte, Bowdoin College
Date: 1/17/2018
Time: 12 p.m.
Location:

464 Loomis

Event Contact: Milton Ruiz
ruizm@illinois.edu
Sponsor:

Department of Physics

Event Type: Seminar/Symposium
 

Critical phenomena, i.e. the appearance of universal scaling laws and self-similarity in the vicinity of phase transitions, appear in different fields of physics and beyond.  Critical phenomena in gravitational collapse to black holes were first observed by Matt Choptuik about 25 years ago - a seminal discovery that launched a whole new field of research.  Until recently, however, much of this research was restricted to spherical symmetry, and therefore could not account for effects that break this symmetry, in particular rotation.  In this talk I will review the appearance of scaling laws and self-similarity close to the onset of black hole formation.  I will then present new numerical relativity simulations of the gravitational collapse of rotating perfect fluids, in the absence of spherical symmetry.  These simulations inform perturbative treatments of the problem, leading to the formulation of generalized scaling laws that take into account the role of angular momentum in the critical collapse to black holes.

To request disability-related accommodations for this event, please contact the person listed above, or the unit hosting the event.

Event Mailing List

Receive Physics Illinois events weekly in your inbox.

Sign-up!


Remove me!