GCN Circular 27119
Subject
LIGO/Virgo S200213t: No EM counterparts found from continued GECKO observation of host galaxy candidates
Event
Date
2020-02-18T08:36:58Z (6 years ago)
From
Gregory SungHak Paek at SNU <shpaek@astro.snu.ac.kr>
Gregory S.H. Paek (SNU), Myungshin Im (SNU), Hyun-Il Sung (KASI), Gu Lim
(SNU), Joonho Kim (SNU), Sungyong Hwang (SNU), Bomi Park (SNU), Sophia Kim
(SNU), Changsu Choi (SNU), Chung-Uk Lee (KASI), Seung-Lee Kim (KASI), Hyung
Mok Lee (KASI), on behalf of GECKO team
We continued follow-up observation for host galaxy candidates (Paek et al,
GCN #27067) with the 1.0-m telescope at the Lemonsan Optical Astronomical
Observatory(LOAO), the 1.0-m telescope at the Deokheung Optical Astronomy
Observatory(DOAO), and the 0.61-m telescope ate the Sobaeksan Optical
Astronomy Observatory(SOAO) in the initial and updated localization area of
S200213t (Singer et al, GCN #27042) and overlapped neutrino detection area
(Hussain et al, GCN #27043).
Each image was taken in R-band with 30 minutes exposure time. No obvious
transient has been identified. The list of the inspected targets is given
below, and upper limit(UL) is for 3-sigma detection.
OBSERVATORY NAME DISTANCE[Mpc] DATE-OBS DEL_JD
FILTER UL[AB] NOTE
----------- ---------------------- ------------- ------------------- ------
------ ------- --------
LOAO PGC11312 169 2020-02-14T02:37:28 0.93
R 21.676 neutrino
LOAO UGC02483 91 2020-02-14T04:04:08 1.00
R 21.511 neutrino
LOAO 2MASS+03014097+3153413 97 2020-02-14T04:43:56 1.02
R 21.163 neutrino
LOAO 2MASS+03012583+3135093 254 2020-02-14T03:15:37 0.96
R 21.626 neutrino
LOAO 2MASS+00585413+5236357 138 2020-02-15T03:30:47 1.97
R 20.945 -
LOAO 2MASS+01154286+5559475 174 2020-02-15T04:15:28 2.0
R 21.327 -
LOAO PGC7302 100 2020-02-15T04:50:59 2.02
R 20.751 -
LOAO 2MASS+01192705+5831151 154 2020-02-15T02:37:38 1.93
R 20.967 -
LOAO 2MASS+01183038+5156442 127 2020-02-16T03:50:58 2.99
R 21.21 -
LOAO PGC137452 179 2020-02-16T03:15:08 2.96
R 21.15 -
LOAO PGC7302 100 2020-02-16T02:36:58 2.93
R 21.06 -
LOAO PGC137873 174 2020-02-16T04:35:36 3.02
R 20.952 -
LOAO NGC0020 77 2020-02-18T02:35:55 4.9
R 20.839 -
LOAO 2MASS+00583689+5137088 121 2020-02-18T03:15:05 4.96
R 21.517 -
---------------------------------------------------------------------------------------------------
DOAO PGC11312 169 2020-02-14T12:05:30 1.32
R 21.016 neutrino
DOAO 2MASS+03012583+3135093 254 2020-02-14T12:36:39 1.35
R 19.96 neutrino
DOAO UGC02483 91 2020-02-14T13:01:41 1.36
R 18.646 neutrino
---------------------------------------------------------------------------------------------------
SOAO PGC11312 169 2020-02-14T10:27:54 1.26
R 21.432 neutrino
SOAO 2MASS+03012583+3135093 254 2020-02-14T10:59:41 1.28
R 21.332 neutrino
SOAO UGC02483 91 2020-02-14T11:33:53 1.30
R 21.062 neutrino
SOAO 2MASS+03014097+3153413 97 2020-02-14T12:07:19 1.33
R 20.88 neutrino
We thank the LOAO opertator for performing the observation.
Gravitational-wave EM Counterpart Korean Observatory (GECKO) is a network
of 10+ 0.5m to 1m class telescopes over the world.