Quark-nova explosion inside a collapsar: application to Gamma Ray Bursts

Abstract

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 (Gamma ~ 1-10) above the polar funnel. Prompt gamma-ray burst emission from internal shocks in relativistic jets (following accretion onto the quark star) become visible after the cap becomes optically thin. Model features include: (i) precursor activity (optical, X-ray, gamma-ray), (ii) prompt gamma-ray emission, and (iii) afterglow emission. We discuss SN-less long duration GRBs, short hard GRBs (including association and non-association with star forming regions), dark GRBs, the energetic X-ray flares detected in Swift GRBs, and the near-simultaneous optical and gamma-ray prompt emission observed in GRBs in the context of our model.

10 journal pages and 5 figures (updated references and extended discussions; accepted for publication in Advances in Astronomy)

References in corpus (14)

• The Supernova -- Gamma-Ray Burst Connection
• Gamma-Ray Bursts
• The First Survey of X-ray Flares from Gamma Ray Bursts Observed by Swift: Temporal Properties and Morphology
• Swift Identification of Dark Gamma-Ray Bursts
• Supernova SN2006gy as a first ever Quark Nova?
• A three stage model for the inner engine of Gamma Ray Burst: Prompt emission and early afterglow
• What did we learn from gamma-ray burst 080319B ?
• Continuous optical monitoring during the prompt emission of GRB 060111B
• Quark deconfinement in neutron star cores: The effects of spin-down
• Nucleosynthesis in neutron-rich ejecta from quark-novae
• Clues from the prompt emission of GRB 080319B
• Dynamical and thermal evolution of the quark-nova ejecta
• The GRB early optical flashes from internal shocks: application to GRB990123, GRB041219a and GRB060111b
• A simple proof of exponential decay in the two dimensional percolation model

Cited by in corpus (3)

• Quark-Novae in Low-Mass X-ray Binaries with massive neutron stars: A universal model for short-hard Gamma-Ray Bursts
• A Quark-Nova in the wake of a core-collapse Supernova: a unifying model for long duration Gamma-Ray Bursts and Fast Radio Bursts
• A powerful e^{+-} outflow driven by a proto-strange quark star