GCN Circular 34031
Subject
ZTF23aaoohpy/AT2023lcr: Liverpool Telescope detection
Date
2023-06-20T00:47:30Z (a year ago)
From
Daniel Perley at Liverpool JMU <d.a.perley@ljmu.ac.uk>
Daniel A. Perley (LJMU), Maggie Li (Cornell), and Anna Y. Q. Ho (Cornell) report:
We obtained Liverpool Telescope follow-up imaging observations of the fast optical transient ZTF23aaoohpy/AT2023lcr (Swain et al., GCN 34022) on the night of 2023-06-19. Observations were conducted in g/r/i filters between UT 22:15-22:29 and in u/r/z filters between 22:47-23:05.
The source is well-detected in the g, r, i, and z filters. We measure photometry of:
MJD magnitude
60114.92765 g = 21.32 +/- 0.08
60114.93103 r = 20.88 +/- 0.06
60114.93440 i = 20.68 +/- 0.06
60114.94962 r = 21.04 +/- 0.06
60114.95300 z = 20.47 +/- 0.10
60114.95733 u > 21.3
The photometry is well-fit by a power-law with spectral index (F_nu ~ nu^beta) of beta ~ -1.2, consistent with GRB afterglows.