Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 26250

LIGO/Virgo S191110af: Retraction of GW unmodeled transient candidate
2019-11-14T22:32:43Z (5 years ago)
Deep Chatterjee at University of Wisconsin, Milwaukee <>
The LIGO Scientific Collaboration and the Virgo Collaboration report:

The trigger S191110af (GCN Circular 26222) is no longer considered to
be a candidate of interest. Further analysis by the cWB [1] pipeline
and investigations of the data quality at LIGO Hanford identified a
short period with an elevated rate of instrumental artifacts in the
frequency range of the trigger.

[1] Klimenko et al. PRD 93, 042004 (2016)
Looking for U.S. government information and services? Visit