The Diverse eV Emission from Gamma-ray Bursts

Details The Diverse eV Emission from Gamma-ray Bursts The Diverse eV Emission from Gamma-ray Bursts

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20921202y&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #212.02; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

We discuss the variety of broadband optical to gamma-ray properties during gamma-ray burst (GRB) events. With rapidly-disseminated positions and automated telescope responses, there is a growing sample of prompt optical detections and limits contemporaneous with the gamma-ray emission. The ROTSE project has yielded over a half-dozen prompt detections, and approximately 10 prompt limits. Along with cases from the literature, we discuss the diverse prompt broadband spectral shapes and connections between the temporal properties at high and low energies. Cases with prompt optical limits are not demonstrably darker than prompt detections, relative to the gamma-ray emission. There is great variety in the optical rise times relative to the GRB onset, as well as relations between temporal properties at high and low energies. With no single pattern for low-energy emission behavior, GRB models must be able to account for diverse outcomes.

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