GCN Circular 21510

Subject

LIGO/Virgo G298048: correction to the luminosity distance reported in GCN 21509

Event

Date

2017-08-17T14:38:46Z (9 years ago)

From

Leo Singer at NASA/GSFC <leo.p.singer@nasa.gov>

The LIGO Scientific Collaboration and the Virgo Collaboration report:

In GCN 21509Loading...
 
 , we reported the identification of a binary neutron star
candidate. We had stated that actual luminosity distance to the source is
likely larger than the estimated effective distance. The effective
distance quoted estimates the *maximum* distance to the source and so the
actual luminosity distance is can be *smaller* than the estimate of the
effective distance.

The BAYESTAR localization generated from H1 data only estimates an actual
luminosity distance of 37 +/- 12 Mpc (a posteriori mean +/- standard
deviation). The distance estimate will likely evolve with further offline
follow-up using data from H1, L1, and V1.

Analyses including data from H1, L1, and V1 are still ongoing and a
sky-map using gravitational-wave data will be made available as quickly as
possible.

[GCN OPS NOTE(17aug17): Per author's request, the LIGO/VIRGO ID
was added to the beginning of the Subject-line.]