Latest #GravitaitonalWave candidate #S250704ab

If real, the source is probably a binary black hole (chirp mass ~5.5–11 solar masses)

False alarm rate 1 in 100 yr
GraceDB https://gracedb.ligo.org/superevents/S250704ab
GCN https://gcn.nasa.gov/circulars/40935
Rating πŸ¬πŸ”ŽπŸ¨

#Astrodon #O4IsHere

Happy birthday #GW150914! Looking back to our first #GravitaitonalWave discovery 9 years ago
https://cplberry.com/2016/02/11/gw150914/

#Astrodon

Advanced LIGO detects gravitational waves!

The first observing run (O1) of Advanced LIGO was scheduled to start 9 am GMT (10 am BST), 14 September 2015. Both gravitational-wave detectors were running fine, but there were few a extra things …

Christopher Berry

Sunny Saturday afternoon #GravitaitonalWave candidate #S240907cg

If real, its source is probably a binary black hole

False alarm rate 1 in 35 yr
GraceDB https://gracedb.ligo.org/superevents/S240907cg/
GCN https://gcn.nasa.gov/circulars/37423
Rating πŸ«πŸŒ‰

#O4IsHere #Astrodon

GraceDB | S240907cg

My avatar pic is a doodle I drew for a LIGO Magazine article about how we infer the properties of a #GravitaitonalWave source for the signal, for example how we measure the masses of merging black holes

https://www.ligo.org/magazine/LIGO-magazine-issue-7.pdf#page=32

The Doodle shows Monty and Carla exploring the distribution of source masses. The names are a pun as we use Markov-chain Monte Carlo samplers as part of our analysis

#Introduction