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GCN Circular 13060

Subject

GRB 120311A: Optical follow-up

Date

2012-03-13T14:09:33Z (12 years ago)

From

Shashi Bhushan Pandey at ROTSE <shaship@umich.edu>

Vijay Kumar Bhatt, Brajesh Kumar and S.B. Pandey (ARIES,
Nainital, India, on behalf of larger Indian GRB collaboration)

We imaged the field of GRB120311A (Swift trigger 517469, Markwardt 
et al., GCN 13032Not found
 
 
) using 1.04m and 1.3m telescopes at ARIES Nainital 
starting ~16 hours after the burst. Several sets of 300s exposures 
were taken in R_c and I_c pass-bands.

We do not detect the optical afterglow candidate (Melandri et al., 
GCN 13033Not found
 
 
) in our stacked images to following limits. The photometry 
was performed in comparison to nearby USNO-B1 stars.


Filter   Exposure     Limiting mag
----------------------------------
R_c      5x300s       20.0 mag

I_c      5x300s       19.5 mag
----------------------------------

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