High Redshift Gamma-Ray Bursts as a Probe of the Early Universe and First Stars
Scientia Sinica: Physica, Mechanica et Astronomica
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Gamma-ray bursts (GRBs) are the most violent explosions in the universe. Thanks totheir extreme brightness, GRBs can be detected up to the edge of the visible universe.As bright beacons in the deep universe, high-redshift GRBs have been considered as an ideal tool toexplore the properties of the early universe: including the dark energy and cosmological parameters,star formation rate, first stars, the reionization and metal enrichment history of the universe.So the detection of high-zz GRBs has important scientific significance. Compared to currentmissions, Einstein Probe has a higher sensitivity and a wider field-of-view, operating the softX-ray band (0.5–4 keV), which would be suitable for the detection of high-zz GRBs. With itsobservational mode and ability, we compute the expected detection rate of high-zz GRBs byEinstein Probe by means of a observational tested population synthesis model of Swift GRBs… See full text for full abstract.
Early universe; First stars; Gamma-ray burst; High-redshift
Astrophysics and Astronomy
High Redshift Gamma-Ray Bursts as a Probe of the Early Universe and First Stars.
Scientia Sinica: Physica, Mechanica et Astronomica, 48(3),