GCN Circular 27004
Subject
GRB 200205B: ESO/NTT near-infrared imaging
Date
2020-02-06T22:22:43Z (5 years ago)
From
Daniele B Malesani at DTU Space <malesani@space.dtu.dk>
D. B. Malesani (DTU Space), D. M. Russell, P. Saikia, M. C. Baglio (NYU
Abu Dhabi), report:
The optical counterpart of GRB 200205B (Evans et al., GCN 26993;
Strausbaugh & Cucchiara, GCN 26995; Vielfaure et al., GCN 26998) was
observed with the ESO New Technology Telescope equipped with the SofI
imager on two different epochs during the night of 2020 Feb 5-6.
Observations were carried out under ESO program 0104.D-0945(A) (PI Russell).
The afterglow is well detected in the first epoch in the J and Ks
filters, and is marginally detected in the second observation.
Calibrated to the 2MASS survey, we obtain the following magnitudes (Vega):
K = 18.07 +- 0.10�� on Feb 6.164 UT�� (0.356 days after the GRB)
J = 19.43 +- 0.10�� on Feb 6.145 UT�� (0.338 days after the GRB)
J = 20.57 +- 0.33�� on Feb 6.368 UT�� (0.561 days after the GRB)