GRB 190604B: VLT Afterglow Detection
Abstract
We observed the field of GRB 190604B (Page et al., GCN 24742) with X-shooter mounted on the ESO VLT UT2 (Kueyen). Images were obtained in SDSS g'r'z', as well as a deeper 300 s r' exposure, centered at 05:24:16 UT on June 05, 2019 (0.8483 days after the GRB trigger). At the position of the UVOT afterglow (Breeveld et al., GCN 24747) and within the XRT error circle (Evans et al., GCN 24746), we detect a faint source only in the latter image. Using a recent computation of the X-shooter acquisition camera zero-point value, the total number of counts, a seven arcsec radius aperture and the exposure time of 300 s, we derive a magnitude of r'(AB) = 23.27 +/- 0.09 mag. Because of source faintness, no spectroscopy was attempted.
- Publication:
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GRB Coordinates Network
- Pub Date:
- June 2019
- Bibcode:
- 2019GCN.24762....1I