The Rates of Hypernovae and Gamma-Ray Bursts: Implications for their Progenitors
A critical comparison of estimates for the rates of hypernovae (HNe) and gamma-ray bursts (GRBs) is presented. Within the substantial uncertainties, the estimates are shown to be quite comparable and give a Galactic rate of $10^{-6}$ -- $10^{-5} $yr$^{-1}$ for both events. These rates are several or...
| Main Authors: | , , , , |
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| Format: | Journal article |
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2004
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| _version_ | 1797089476340613120 |
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| author | Podsiadlowski, P Mazzali, P Nomoto, K Lazzati, D Cappellaro, E |
| author_facet | Podsiadlowski, P Mazzali, P Nomoto, K Lazzati, D Cappellaro, E |
| author_sort | Podsiadlowski, P |
| collection | OXFORD |
| description | A critical comparison of estimates for the rates of hypernovae (HNe) and gamma-ray bursts (GRBs) is presented. Within the substantial uncertainties, the estimates are shown to be quite comparable and give a Galactic rate of $10^{-6}$ -- $10^{-5} $yr$^{-1}$ for both events. These rates are several orders of magnitude lower than the rate of core-collapse supernovae, suggesting that the evolution leading to a HN/GRB requires special circumstances, very likely due to binary interactions. Various possible binary channels are discussed, and it is shown that these are generally compatible with the inferred rates. |
| first_indexed | 2024-03-07T03:04:38Z |
| format | Journal article |
| id | oxford-uuid:b213acdc-ce5b-487d-8dc9-9e653cbd71d8 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T03:04:38Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:b213acdc-ce5b-487d-8dc9-9e653cbd71d82022-03-27T04:09:06ZThe Rates of Hypernovae and Gamma-Ray Bursts: Implications for their ProgenitorsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b213acdc-ce5b-487d-8dc9-9e653cbd71d8Symplectic Elements at Oxford2004Podsiadlowski, PMazzali, PNomoto, KLazzati, DCappellaro, EA critical comparison of estimates for the rates of hypernovae (HNe) and gamma-ray bursts (GRBs) is presented. Within the substantial uncertainties, the estimates are shown to be quite comparable and give a Galactic rate of $10^{-6}$ -- $10^{-5} $yr$^{-1}$ for both events. These rates are several orders of magnitude lower than the rate of core-collapse supernovae, suggesting that the evolution leading to a HN/GRB requires special circumstances, very likely due to binary interactions. Various possible binary channels are discussed, and it is shown that these are generally compatible with the inferred rates. |
| spellingShingle | Podsiadlowski, P Mazzali, P Nomoto, K Lazzati, D Cappellaro, E The Rates of Hypernovae and Gamma-Ray Bursts: Implications for their Progenitors |
| title | The Rates of Hypernovae and Gamma-Ray Bursts: Implications for their
Progenitors |
| title_full | The Rates of Hypernovae and Gamma-Ray Bursts: Implications for their
Progenitors |
| title_fullStr | The Rates of Hypernovae and Gamma-Ray Bursts: Implications for their
Progenitors |
| title_full_unstemmed | The Rates of Hypernovae and Gamma-Ray Bursts: Implications for their
Progenitors |
| title_short | The Rates of Hypernovae and Gamma-Ray Bursts: Implications for their
Progenitors |
| title_sort | rates of hypernovae and gamma ray bursts implications for their progenitors |
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