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The afterglow of a dense molecular cloud after the passage of a cosmological gamma-ray burst

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Abstract

Bolometric light curves for the afterglow resulting from the passage of a gamma-ray burst through a molecular cloud are computed. The profile and duration of the afterglow light curve depend strongly on the distribution of matter in the cloud, the degree of collimation of the gamma-ray radiation, and the observing conditions. The peak can be reached as soon as seven days (the gamma-ray burst is located at some distance from the center of a molecular cloud with small-scale density enhancements), or as long as one to three years (the gamma-ray burst is located at the center of a uniform molecular cloud) after the burst. The bolometric luminosity of the re-radiated signal can reach 6.5 × 1042 erg/s.

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Authors and Affiliations

  1. Space Research Institute, Moscow, Russia

    M. V. Barkov & G. S. Bisnovatyi-Kogan

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  1. M. V. Barkov
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  2. G. S. Bisnovatyi-Kogan
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__________

Translated from Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Zhurnal, Vol. 82, No. 8, 2005, pp. 685–698.

Original Russian Text Copyright © 2005 by Barkov, Bisnovaty\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \)-Kogan.

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Barkov, M.V., Bisnovatyi-Kogan, G.S. The afterglow of a dense molecular cloud after the passage of a cosmological gamma-ray burst. Astron. Rep. 49, 611–623 (2005). https://doi.org/10.1134/1.2010650

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  • DOI: https://doi.org/10.1134/1.2010650

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