The Dark Side of ROTSE-III Prompt GRB Observations
Abstract
We present several cases of optical observations during γ-ray bursts (GRBs) which resulted in prompt limits but no detection of optical emission. These limits constrain the prompt optical flux densities and the optical brightness relative to the γ-ray emission. The derived constraints fall within the range of properties observed in GRBs with prompt optical detections, although at the faint end of optical/γ-ray flux ratios. The currently accessible prompt optical limits do not require a different set of intrinsic or environmental GRB properties, relative to the events with prompt optical detections.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- November 2007
- DOI:
- 10.1086/521668
- arXiv:
- arXiv:0707.3132
- Bibcode:
- 2007ApJ...669.1107Y
- Keywords:
-
- Gamma Rays: Bursts;
- Astrophysics
- E-Print:
- ApJ accepted. 20 pages in draft manuscript form, which includes 6 pages of tables and 2 figures