GCN Circular 37169
Subject
LIGO/Virgo/KAGRA S240813c: Updated Sky localization
Date
2024-08-13T05:12:19Z (4 months ago)
From
carl.haster@unlv.edu
Via
Web form
The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration report:
We have conducted further analysis of the LIGO Livingston Observatory (L1) and Virgo Observatory (V1) data around the time of the compact binary merger (CBC) candidate S240813c (GCN Circular 37168). Parameter estimation has been performed using Bilby [1] and a new sky map, Bilby.multiorder.fits,0, distributed via GCN Notice, is available for retrieval from the GraceDB event page:
https://gracedb.ligo.org/superevents/S240813c
For the Bilby.multiorder.fits,0 sky map, the 90% credible region is 14326 deg2. Marginalized over the whole sky, the a posteriori luminosity distance estimate is 1130 +/- 338 Mpc (a posteriori mean +/- standard deviation).
For further information about analysis methodology and the contents of this alert, refer to the LIGO/Virgo/KAGRA Public Alerts User Guide https://emfollow.docs.ligo.org/.
[1] Ashton et al. ApJS 241, 27 (2019) doi:10.3847/1538-4365/ab06fc and Morisaki et al. (2023) arXiv:2307.13380