TITLE: GCN CIRCULAR NUMBER: 34761 SUBJECT: LIGO/Virgo/KAGRA S230924an: Updated Sky localization DATE: 23/09/24 18:21:08 GMT FROM: naresh.adhikari@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 S230924an (GCN Circular 34760). 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/S230924an For the Bilby.multiorder.fits,0 sky map, the 90% credible region is 835 deg2. Marginalized over the whole sky, the a posteriori luminosity distance estimate is 2358 +/- 596 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) View this GCN Circular online at https://gcn.nasa.gov/circulars/34761. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...