GCN Circular 24489
Subject
LIGO/Virgo S190510g: Update on candidate significance
Date
2019-05-11T20:19:22Z (6 years ago)
From
Shasvath J. Kapadia at U. of Wisconsin, Milwaukee <kapadia@uwm.edu>
The LIGO Scientific Collaboration and the Virgo Collaboration report:
We have conducted subsequent analysis of data around the time of S190510g
including LIGO and Virgo data collected in the 24 hour period after the
event. The resulting re-estimate of the background model yields a
FAR (False Alarm Rate) of 1 in 3.6 years compared to 1 in 37 years initially
reported in GCN 24442.
Using the updated background model, the classification of the event,
in order of descending probability, is estimated to be:
Terrestrial (58%), BNS (42%), NSBH (<1%), BBH (<1%), or MassGap (<1%).
Further analysis of the event is ongoing. Updates will be provided
as and when available.
For further information about analysis methodology and the contents of
this alert, refer to the LIGO/Virgo Public Alerts User Guide
<https://emfollow.docs.ligo.org/userguide/>.