TITLE: GCN CIRCULAR NUMBER: 38892 SUBJECT: LIGO/Virgo/KAGRA S250108eo: Updated Sky localization DATE: 25/01/10 14:50:11 GMT FROM: alexandresebastien.goettel@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), LIGO Livingston Observatory (L1), and Virgo Observatory (V1) data around the time of the compact binary merger (CBC) candidate S250108eo (GCN Circular 38851). 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/S250108eo
For the Bilby.multiorder.fits,0 sky map, the 90% credible region is 795 deg2. Marginalized over the whole sky, the a posteriori luminosity distance estimate is 4306 +/- 1349 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
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