The Luminosity Function and Formation Rate History of GRBs

2); A.V. Tutukov (3); ((1) Osserv. Astron. di Brera; C. Firmani (1; G. Ghisellini (1); Italy; (2) Instituto de Astronomia; Mexico; (3) Institute of Astronomy Moscow; Russia); U.N.A.M.; V. Avila-Reese (2)

arxiv: astro-ph/0504417 · v1 · pith:BJAC2VKRnew · submitted 2005-04-19 · 🌌 astro-ph

The Luminosity Function and Formation Rate History of GRBs

C. Firmani (1 , 2) , V. Avila-Reese (2) , G. Ghisellini (1) , A.V. Tutukov (3); ((1) Osserv. Astron. di Brera , Italy; (2) Instituto de Astronomia , U.N.A.M. , Mexico; (3) Institute of Astronomy Moscow

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keywords formationfunctiongrbshistoryluminosityrateresultsconstrained

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The isotropic luminosity function (LF) and formation rate history (FRH) of long GRBs is by the first time constrained by using jointly both the observed GRB peak-flux and redshift distributions. Our results support an evolving LF and a FRH that keeps increasing after z=2. We discuss some interesting implications related to these results.

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The Luminosity Function and Formation Rate History of GRBs

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