GCN Circular 24459
Subject
LIGO/Virgo S190425z: CAHA-GRANDMA Observation of the Swift UVOT Source
Date
2019-05-10T19:16:15Z (6 years ago)
From
Alexander Kann at IAA-CSIC <kann@iaa.es>
D. A. Kann (HETH/IAA-CSIC), C. Thoene (HETH/IAA-CSIC), C. Stachie
(Artemis), X. Zhang (THU), Z. Vidadi (Shao), M. Blazek (HETH/IAA-CSIC),
K. Bensch (HETH/IAA-CSIC), L. Izzo (HETH/IAA-CSIC), A. de Ugarte Postigo
(HETH/IAA-CSIC, DARK/NBI), S. Antier (APC), S. Basa (LAM), M. Boer
(Artemis), D. Corre (LAL), M. Coughlin (Caltech), D. Coward
(OzGrav-UWA), J.G. Ducoin (LAL), B. Gendre (OzGrav-UWA), P. Hello (LAL),
A. Klotz (IRAP), C. Lachaud (APC), N. Leroy (LAL), D. Turpin (NAOC), and
X. Wang (THU)
report on behalf of the HETH group and GRANDMA collaboration:
We observed the location of the Swift UVOT transient (Breeveld et al.,
GCN #24296) discovered in the error region of the aLIGO/Virgo Binary
Neutron Star merger event S190425z (Ligo Scientific Collaboration and
VIRGO Collaboration, GCN #24168, #24228), with
the 2.2m CAHA telescope and CAFOS. We obtained 3 x 240 s each in U/B and
6 x 120 s in V/Rc/Ic. The observations were performed on 2019-04-28 from
02:11:50 to 03:52:47 UT.
At the position (Palmese et al., GCN #24312