Journal
ASTROPHYSICAL JOURNAL
Volume 929, Issue 2, Pages -Publisher
IOP Publishing Ltd
DOI: 10.3847/1538-4357/ac5d5c
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Funding
- US Department of Energy through the Los Alamos National Laboratory
- National Nuclear Security Administration of the US Department of Energy [89233218CNA000001]
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The immense power of gamma-ray bursts allows them to be used as probes of the early universe. By studying the absorption lines in the afterglows of high-redshift gamma-ray bursts, astronomers can understand the evolution of metals in the early universe. This paper presents a detailed study on the properties of long-duration gamma-ray bursts under the black hole accretion disk paradigm, and predicts the evolution of these properties with redshift.
The immense power of gamma-ray bursts (GRBs) makes them ideal probes of the early universe. By using absorption lines in the afterglows of high-redshift GRBs, astronomers can study the evolution of metals in the early universe. With an understanding of the nature of GRB progenitors, the rate and properties of GRBs observed at high redshift can probe the star formation history and the initial mass function of stars at high redshift. This paper presents a detailed study of the dependence on metallicity and mass of the properties of long-duration GRBs under the black hole accretion disk paradigm to predict the evolution of these properties with redshift. These models are calibrated on the current GRB observations and then used to make predictions for new observations and new missions (e.g., the proposed Gamow mission) studying high-redshift GRBs.
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