GRB 180512A: RATIR Optical Observations
Abstract
Report: We observed the field of GRB 180512A (Deich et al., GCN Circ. 22710) with the Reionization and Transients Infrared Camera (RATIR; www.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio Astronómico Nacional on Sierra San Pedro Mártir from 2018/05 13.16 to 2018/05 13.44 UTC (5.75 to 12.58 hours after the BAT trigger), obtaining a total of 5.22 hours exposure in the r and i bands. For a source within the enhanced Swift-XRT error circle (Evans et al., GCN Circ. 22715), in comparison with the SDSS DR9 and 2MASS catalogs, we obtain the following 3-sigma upper limits: r > 24.30 i > 24.23 These magnitudes are in the AB system and are not corrected for Galactic extinction in the direction of the GRB. We thank the staff of the Observatorio Astronómico Nacional in San Pedro Mártir.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- May 2018
- Bibcode:
- 2018GCN.22719....1W