| Autor: |
Chandra, Poonam, Cenko, S. Bradley, Frail, Dale A., Chevalier, Roger A., Macquart, Jean-Pierre, Kulkarni, Shri R., Bock, Douglas C.-J., Bertoldi, Frank |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 5/22/2008, Vol. 1000 Issue 1, p346-349, 4p, 1 Graph |
| Abstrakt: |
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%). [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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