GRB 220210A: BOOTES-5/JGT optical afterglow candidate
Abstract
The 60cm BOOTES-5/JGT robotic telescope at Observatorio Astronomico Nacional in San Pedro Martir (Mexico) observed the Swift/BAT-GUANO error box for GRB 220210A (Tohuvavohu et al., GCNC 31572) also detected by Fermi (The Fermi Team, GCNC 31568) starting at 04:35 UT (i.e. 4.6 h post burst). In the single clear images (60 s exposure), we find an uncataloged optical source at (J2000) coordinates RA: 23:03:17.1, DEC:+61:49:36.6 (+/- 1") within the Swift/BAT-GUANO error box and for which we measure a preliminary magnitude R = 18.5 mag. We propose this source to be the GRB 220210A optical afterglow, pending confirmation of its variability. Further multicolour observations are ongoing. Spectroscopic observations are encouraged. We thank the staff at San Pedro Martir for their support.
- Publication:
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GRB Coordinates Network
- Pub Date:
- February 2022
- Bibcode:
- 2022GCN.31573....1C