TITLE:   GCN CIRCULAR
NUMBER:  34802
SUBJECT: LIGO/Virgo/KAGRA S231005ah: Updated Sky localization
DATE:    23/10/05 14:32:38 GMT
FROM:    Soichiro Morisaki at U. of Tokyo <soichiro.morisaki@ligo.org>

The LIGO Scientific Collaboration, the Virgo Collaboration, and the
KAGRA Collaboration report:

We have conducted further analysis of the LIGO Hanford Observatory
(H1) and LIGO Livingston Observatory (L1) data around the time of the
compact binary merger (CBC) candidate S231005ah (GCN Circular 34801). 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/S231005ah

For the Bilby.multiorder.fits,0 sky map, the 90% credible region is
2497 deg2. Marginalized over the whole sky, the a posteriori
luminosity distance estimate is 3707 +/- 1335 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)