Barry Barish, "LIGO: 10yrs after 1st Detection" and Will Farr, "Testing Hawking's Area Law and the Kerr Nature of Astrophysical Black Holes"

Monday 22 Sept 2025, 12:45 → 13:55 US/Eastern

D-122 (SBU Physics building)

Ciro Riccio (Stony Brook University (US)), Hannah Arnold (Stony Brook University)

12:45 → 13:30 LIGO: 10 Years After the Discovery of Gravitational Waves

It is incredible that we made the discovery of gravitational waves only a decade ago, and it seemed a near impossible feat. Since that time, we have significantly improved detector sensitivity and now have almost 300 detections, and have produced a wide range of new exciting physics results. And, the field is still in its infancy and there will be much more to come.

Speaker: Barry Barish

GMT20250922-163629_Recording_2880x1800.mp4

13:30 → 13:45 Testing Hawking's Area Law and the Kerr Nature of Astrophysical Black Holes

GW250114 is the loudest binary black hole merger detected to date, with a signal-to-noise ratio ~80.  I will describe how we have used GW250114 to test the Kerr nature of astrophysical black holes and to observationally verify the consequences of Hawking's Area Law.

Speaker: Will Farr (Stony Brook University)

Slides

Slides