GRB 240229A: DDOTI Upper Limits on the Afterglow
Abstract
Report: We observed the field of the Fermi GBM GRB 240229A (Fermi GBM team 2024, GCN Circ. 35833) with the DDOTI wide-field imager at the Observatorio Astronómico Nacional on Sierra San Pedro Mártir ( http://ddoti.astroscu.unam.mx) from 2024-03-01 06:10:00 to 12:58:45 UTC (16.05 to 22.86 hours after the trigger). We observed a region of 7 degrees in RA by 7 degrees in declination centered on the Fermi GBM Final Position of RA = 199.18 and Dec = 16.77 (J2000 degrees). This region contains 1 instrumental field or about 49 square degrees. We obtained 103 minutes of exposure per instrumental field in the w filter. We obtained AB photometry by calibration against the APASS catalog. We detect no likely candidates for the afterglow to our 10-sigma upper limits of w = 19.90 - 20.64 (inter-quartile). We thank the staff of the Observatorio Astronómico Nacional on San Pedro Mártir.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- March 2024
- Bibcode:
- 2024GCN.35844....1L