Multiwaveband analysis of brightest GRB070125

Details Multiwaveband analysis of brightest GRB070125 Multiwaveband analysis of brightest GRB070125

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1000..346c&link_type=abstract

GAMMA-RAY BURSTS 2007: Proceedings of the Santa Fe Conference. AIP Conference Proceedings, Volume 1000, pp. 346-349 (2008).

Computer Science

Gamma-Ray Sources, Gamma-Ray Bursts, Interstellar Medium And Nebulae In External Galaxies, X- And Gamma-Ray Sources, Mirrors, Gratings, And Detectors

Scientific paper

We present a comprehensive multiwavelength analysis of the bright, long duration gamma-ray burst GRB 070125, comprised of observations in γ-ray, X-ray, optical, millimeter and centimeter wavebands. Radio light curves show rapid flux variations, which are interpreted as due to interstellar scintillation, and are used to derive an upper limit of 2.4×1017 cm on the radius of the fireball. Radio light curves and spectra suggest that the afterglow shock wave is moving in a dense medium. Our broadband modeling favors a constant density profile for the circumburst medium over a wind-like profile (R-2). GRB 070125 is a burst with high radiative efficiency (>60%).

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