First Gamma-Ray Bursts and Afterglows Imprinting Population III Progenitor Structure

Details First Gamma-Ray Bursts and Afterglows Imprinting Population III Progenitor Structure First Gamma-Ray Bursts and Afterglows Imprinting Population III Progenitor Structure

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1279..187s&link_type=abstract

DECIPHERING THE ANCIENT UNIVERSE WITH GAMMA-RAY BURSTS. AIP Conference Proceedings, Volume 1279, pp. 187-190 (2010).

Astronomy and Astrophysics

Astrophysics

Gamma-Ray Sources (Astronomical), Population Iii Stars, Redshift, Astrophysical Jets, Gamma-Ray Sources, Gamma-Ray Bursts, Population Iii Stars, Distances, Redshifts, Radial Velocities, Spatial Distribution Of Galaxies, Jets, Outflows And Bipolar Flows

Scientific paper

We discuss the relativistic jet propagation in the envelope of very massive first generation star (Population III; Pop III). By using a density profile of the Pop III star for estimating the jet luminosity and its penetrability, we show that the relativistic jet can potentially pierce the massive stellar envelope thanks to the long-lived accretion of the envelope itself, leading to an energetic (Etot~1053 erg) gamma-ray bursts (GRB) with very long duration A˛`1000 sec and even dominating cocoon afterglow. Such features are sensitive to the envelope mass, providing a possible probe of the first luminous objects in the high redshift dark ages.

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