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GCN Circular 34190

Subject
LIGO/Virgo/KAGRA S230708cf: Updated Sky localization
Date
2023-07-10T07:10:11Z (9 months ago)
From
jgolomb@caltech.edu
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 S230708cf (GCN Circular 34173). 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/S230708cf

For the Bilby.multiorder.fits,0 sky map, the 90% credible region is 2032 deg2. Marginalized over the whole sky, the a posteriori luminosity distance estimate is 3336 +/- 1076 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)
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