Quark-Nova Explosion inside a Collapsar: Application to Gamma Ray Bursts
If a quark-nova occurs inside a collapsar, the interaction between the quark-nova ejecta (relativistic iron-rich chunks) and the collapsar envelope leads to features indicative of those observed in Gamma Ray Bursts. The quark-nova ejecta collides with the stellar envelope creating an outward moving...
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | Advances in Astronomy |
| Online Access: | http://dx.doi.org/10.1155/2009/463521 |
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| author | Rachid Ouyed Denis Leahy Jan Staff Brian Niebergal |
| author_facet | Rachid Ouyed Denis Leahy Jan Staff Brian Niebergal |
| author_sort | Rachid Ouyed |
| collection | DOAJ |
| description | If a quark-nova occurs inside a collapsar, the interaction between the quark-nova ejecta (relativistic iron-rich chunks) and the collapsar envelope leads to features indicative of those observed in Gamma Ray Bursts. The quark-nova ejecta collides with the stellar envelope creating an outward moving cap (Γ∼ 1–10) above the polar funnel. Prompt gamma-ray burst emission from internal shocks in relativistic jets (following accretion onto the quark star) becomes visible after the cap becomes optically thin. Model features include (i) precursor activity (optical, X-ray, γ-ray), (ii) prompt γ-ray emission, and (iii) afterglow emission. We discuss SN-less long duration GRBs, short hard GRBs (including association and nonassociation with star forming regions), dark GRBs, the energetic X-ray flares detected in Swift GRBs, and the near-simultaneous optical and γ-ray prompt emission observed in GRBs in the context of our model. |
| format | Article |
| id | doaj-art-4e7cd3379d1e4805861f93ecc575c9e9 |
| institution | Kabale University |
| issn | 1687-7969 1687-7977 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Astronomy |
| spelling | doaj-art-4e7cd3379d1e4805861f93ecc575c9e92025-02-03T01:00:52ZengWileyAdvances in Astronomy1687-79691687-79772009-01-01200910.1155/2009/463521463521Quark-Nova Explosion inside a Collapsar: Application to Gamma Ray BurstsRachid Ouyed0Denis Leahy1Jan Staff2Brian Niebergal3Department of Physics and Astronomy, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, CanadaDepartment of Physics and Astronomy, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, CanadaDepartment of Physics and Astronomy, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, CanadaDepartment of Physics and Astronomy, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, CanadaIf a quark-nova occurs inside a collapsar, the interaction between the quark-nova ejecta (relativistic iron-rich chunks) and the collapsar envelope leads to features indicative of those observed in Gamma Ray Bursts. The quark-nova ejecta collides with the stellar envelope creating an outward moving cap (Γ∼ 1–10) above the polar funnel. Prompt gamma-ray burst emission from internal shocks in relativistic jets (following accretion onto the quark star) becomes visible after the cap becomes optically thin. Model features include (i) precursor activity (optical, X-ray, γ-ray), (ii) prompt γ-ray emission, and (iii) afterglow emission. We discuss SN-less long duration GRBs, short hard GRBs (including association and nonassociation with star forming regions), dark GRBs, the energetic X-ray flares detected in Swift GRBs, and the near-simultaneous optical and γ-ray prompt emission observed in GRBs in the context of our model.http://dx.doi.org/10.1155/2009/463521 |
| spellingShingle | Rachid Ouyed Denis Leahy Jan Staff Brian Niebergal Quark-Nova Explosion inside a Collapsar: Application to Gamma Ray Bursts Advances in Astronomy |
| title | Quark-Nova Explosion inside a Collapsar: Application to Gamma Ray Bursts |
| title_full | Quark-Nova Explosion inside a Collapsar: Application to Gamma Ray Bursts |
| title_fullStr | Quark-Nova Explosion inside a Collapsar: Application to Gamma Ray Bursts |
| title_full_unstemmed | Quark-Nova Explosion inside a Collapsar: Application to Gamma Ray Bursts |
| title_short | Quark-Nova Explosion inside a Collapsar: Application to Gamma Ray Bursts |
| title_sort | quark nova explosion inside a collapsar application to gamma ray bursts |
| url | http://dx.doi.org/10.1155/2009/463521 |
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