GRB 230414B: Montarrenti Observatory late time optical afterglow detection
Abstract
We observed the field of GRB 230414B (Swift trigger 1164180, A. D'Ai et al. GCN 33612; Lipunov GCN 33614; Pankov et al. GCN 33615; Lu et al. GCN 33616; Raman et al. GCN 33618; Ghosh et al. GCN 33620; Moskvitin et al. GCN 33622; Malesani et al. GCN 33623; Zhu et al. GCN 33625; Gupta et al. GCN 33627; Belkin et al. GCN 33628; Agui Fernandez et al. GCN 33629; Quadri & Strabla GCN 33630; Chen et al. GCN 33631) with the automatic 0.53m RC telescope + U47 detector at Montarrenti Observatory (Siena, Italy, IAU code C88). The observations were started in a windy night under mediocre seeing conditions at 2023-04-15 21:18:31 UT (approximately 29 hours after burst) stacking 20x30s unfiltered CCD exposures. The optical afterglow was detected at the following position: RA (J2000.0) 12h 04m 22.68s +/-0.22 Decl. (J2000.0) +53° 09' 17.2" +/-0.28 Preliminary photometry is obtained using nearby USNO-B1 stars as follows: 2023 Apr 15.89133 UT (21:23:31 mid-time) CR=21.53 +/-0.18 Measures are not corrected for galactic dust extinction
- Publication:
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GRB Coordinates Network
- Pub Date:
- April 2023
- Bibcode:
- 2023GCN.33634....1L