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The Connection between Gamma-Ray Bursts and Extremely Metal-Poor Stars as Nucleosynthetic Probes of the Early Universe
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nomoto, Ken'ichi Tominaga, Nozomu Tanaka, Masaomi Keiichi Umeda, Hideyuki |
| Copyright Year | 2008 |
| Abstract | The connection between the long GRBs and Type Ic Supernovae (SNe) has revealed the interesting diversity: (i) GRB-SNe, (ii) Non-GRB Hypernovae (HNe), (iii) X-Ray Flash (XRF)SNe, and (iv) Non-SN GRBs (or dark HNe). We show that nucleosynthetic properties found in the above diversity are connected to the variation of the abundance patterns of extremelymetal-poor (EMP) stars, such as the excess of C, Co, Zn relative to Fe. We explain such a connection in a unified manner as nucleosynthesis of hyper-aspherical (jet-induced) explosions of Pop III core-collapse SNe. We show that (1) the explosions with large energy deposition rate, Ėdep, are observed as GRB-HNe and their yields can explain the abundances of normal EMP stars, and (2) the explosions with small Ėdep are observed as GRBs without bright SNe and can be responsible for the formation of the C-rich EMP (CEMP) and the hyper metal-poor (HMP) stars. We thus propose that GRB-HNe and the Non-SN GRBs (dark HNe) belong to a continuous series of BH-forming massive stellar deaths with the relativistic jets of different Ėdep. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://arxiv.org/pdf/0803.1964v1.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Cessation of life Flash memory GZMB wt Allele Halobacterium sp. GRB Host media processing Hyperactive behavior Hyperimmunoglobulin M syndrome Interferon Type II Iron Offset binary Physical vapor deposition Stars, Celestial Stellar (payment network) X86 |
| Content Type | Text |
| Resource Type | Article |
