GRB 201209A: FRAM-Auger optical limit
Abstract
report: The 30cm robotic telescope FRAM-Auger in Malargue (Argentina) reacted robotically to the Swift/BAT alert of GRB201209A (Gropp et al., GCNC 29005), starting with a series of 20 s R-band images at 05:45:40 UT, i.e. 48 s post trigger. We do not detect any new or strongly variable source at or around the reported X-ray error box in single frames nor in a combined 20 x 20 s image spanning the period from 0.8 min to 11.9 min after the initial trigger. The combined exposure has a 3-sigma limiting magnitude R(Vega) ~ 17.4.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- December 2020
- Bibcode:
- 2020GCN.29006....1J