Ouyed, RachidLeahy, DenisStaff, JanNiebergal, Brian2018-09-272018-09-272009-06-07Rachid Ouyed, Denis Leahy, Jan Staff, and Brian Niebergal, “Quark-Nova Explosion inside a Collapsar: Application to Gamma Ray Bursts,” Advances in Astronomy, vol. 2009, Article ID 463521, 10 pages, 2009. doi:10.1155/2009/463521http://hdl.handle.net/1880/10850210.11575/PRISM/44193If 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 ( 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, -ray), (ii) prompt -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 -ray prompt emission observed in GRBs in the context of our model.Journal Article2018-09-27enCopyright © 2009 Rachid Ouyed et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.https://doi.org/10.1155/2009/463521