GCN Circular 34811
Subject
LIGO/Virgo/KAGRA S231001aq: Updated Sky localization
Date
2023-10-11T09:37:34Z (a year ago)
From
Soichiro Morisaki at U. of Tokyo <soichiro.morisaki@ligo.org>
Via
Web form
The LIGO Scientific Collaboration, the Virgo Collaboration, and the
KAGRA Collaboration report:
We have conducted further offline analysis of the LIGO Hanford Observatory
(H1) and LIGO Livingston Observatory (L1) data around the time of the
compact binary merger (CBC) candidate S231001aq (GCN Circular 34785). Parameter estimation has been
performed using Bilby [1] and a new sky map,
Bilby.offline0.multiorder.fits,0, distributed via GCN Notice, is
available for retrieval from the GraceDB event page:
https://gracedb.ligo.org/superevents/S231001aq
For the Bilby.offline0.multiorder.fits,0 sky map, the 90% credible
region is 3181 deg2. Marginalized over the whole sky, the a posteriori
luminosity distance estimate is 4425 +/- 1946 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/userguide/.
[1] Ashton et al. ApJS 241, 27 (2019)