[vsnet-grb-info 26216] GRB200829A: optical afterglow detection
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Sun Aug 30 06:06:21 JST 2020
TITLE: GCN CIRCULAR
NUMBER: 28316
SUBJECT: GRB200829A: optical afterglow detection
DATE: 20/08/29 21:05:19 GMT
FROM: Jozsef Vinko at Konkoly Observatory <vinko at konkoly.hu>
GRB200829A: optical afterglow detection from Konkoly Observatory
J. Vinko, K. Vida, A. Pal, L. Kriskovics, R. Szakats, A. Ordasi and K. Sarneczky
(Konkoly Observatory, Hungary) report:
The optical afterglow of GRB 200829A (Siegel et al. GCN 28307) is detected with the
0.8m RC80 robotic telescope at Piszkesteto Station of Konkoly Observatory starting on
Aug 29 19:22:00 UT, 19346 s after the Swift/BAT trigger. The afterglow
is measured on stacked Sloan r'- and i'-band frames of 3x300 s exposure.
Photometry, tied to nearby comparison stars with PS1 magnitudes, gives.
r' = 18.45 +/- 0.09 and i' = 18.49 +/- 0.11 mag, in accord with previous optical
detections (Pozanenko et al. GCN 28308; Kuin et al. GCN 28311; Ursi et al. GCN 28314;
Lipunov et al. GCN 28315)..
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