GCN Circular 25916
Subject
LIGO/Virgo S190930t: Lulin Follow-up Observations of AT2019rpn and AT2019rpj
Event
Date
2019-10-01T23:55:00Z (6 years ago)
From
Albert Kong at NTHU <akhkong@gmail.com>
Han-Jie Tan (NCU), Albert Kong (NTHU), Chow-Choong Ngeow (NCU),
Wing-Huen Ip (NCU)
On behalf of the Global Relay of Observatories Watching Transients
Happen (GROWTH) collaborations
We report the photometric measurements of two optical counterpart
candidates ZTF19acbpqlh (AT2019rpn) and ATLAS19wyn/ZTF19acbpsuf
(AT2019rpj) associated with the gravitational wave event S190930t (GCN
#25876, #25899) using the Lulin One-meter Telescope (LOT) in Taiwan.
The observations were conducted using g, r, i filters starting at
2019-10-01 14:12:14 UT. Preliminary photometry was obtained by
calibrating with the Pan-STARRS catalog.
Summary of ZTF19acbpqlh:
UT Filter Exp(s) Mag (AB)
2019-10-01 14:14:56 g 300 20.80+/-0.25
2019-10-01 14:20:16 r 300 20.67+/-0.33
2019-10-01 14:25:36 i 300 20.80+/-0.39
Summary of ATLAS19wyn/ZTF19acbpsuf:
2019-10-01 14:31:53 g 300 19.65+/-0.08
2019-10-01 14:37:14 r 300 19.58+/-0.09
2019-10-01 14:42:35 i 300 19.55+/-0.12
We would like to thank the staff in Lulin Observatory for helping the
observations.