TITLE:   GCN CIRCULAR
NUMBER:  26520
SUBJECT: LIGO/Virgo S191213g : SAO 1-m optical observation of AT2019wxt (PS19hgw)
DATE:    19/12/20 17:35:51 GMT
FROM:    Gu Lim at Seoul National U  <lim9gu@gmail.com>

SUBJECT : LIGO/Virgo S191213g : SAO optical observation of AT2019wxt
(PS19hgw)

Gu Lim (SNU), Myungshin Im (SNU), Gregory S. H. Paek (SNU), Joonho Kim
(SNU), Sungyong Hwang (SNU), Bomi Park (SNU), Sophia Kim (SNU), Changsu
Choi (SNU),  Hyung Mok Lee (KASI), on behalf of a larger collaboration

We observed the transient AT2019wxt (PS19hgw; GCN 26485) using Seoul
National University Astronomical Observatory (SAO) 1-meter telescope at
Seoul, South Korea. The observations began on December 19, 09:12:38 UT with *B,
V, R, I* filter taking 180s for each image. After the calibration with PS1
catalog, we conducted image stacking and host galaxy subtraction using PS1
templates. The source is detected in *R, I* images. 5-sigma limit image
depth for point source is presented for *B, V* imaging.

Start time  [MJD]                    Filter
 magnitude [AB]
----------------------------------------------------------------------------------
58836.384                                 B                             <
18.730
58836.404                                 V                             <
18.833
58836.424                                 R
19.464+/-0.118
58836.444                                 I
19.469+/-0.128

Our photometry results are consistent with GCN 26503.

*Lim, Gu*


Ph. D Course

Astronomy Program,

Department of Physics and Astronomy,

Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Korea

Center for the Exploration of the Origin of the Universe (CEOU)
ᐧ