A collapsar model with disk wind: Implications for supernovae associated with Gamma-Ray Bursts

Abstract

We construct a simple but self-consistent collapsar model for gamma-ray bursts (GRBs) and SNe associated with GRBs (GRB-SNe).Our model includes a black hole, an accretion disk, and the envelope surrounding the central system.The evolutions of the different components are connected by the transfer of the mass and angular momentum.To address properties of the jet and the wind-driven SNe, we consider competition of the ram pressure from the infalling envelope and those from the jet and wind.The expected properties of the GRB jet and the wind-driven SN are investigated as a function of the progenitor mass and angular momentum.We find two conditions which should be satisfied if the wind-driven explosion is to explain the properties of the observed GRB-SNe. (1) The wind should be collimated at its base, and (2) it should not prevent further accretion even after the launch of the SN explosion. Under these conditions, some relations seen in the properties of the GRB-SNe could be reproduced by a sequence of different angular momentum in the progenitors.Only the model with the largest angular momentum could explain the observed (energetic) GRB-SNe, and we expect that the collapsar model can result in a wide variety of observational counterparts mainly depending on the angular momentum of the progenitor star.

Accepted for publication in ApJ. 15 pages, 14 figures, 2 tables

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• Collapsars as a major source of r-process elements
• Full Transport General Relativistic Radiation Magnetohydrodynamics for Nucleosynthesis in Collapsars
• Systematic investigation of the fallback accretion powered model for hydrogen-poor superluminous supernovae
• Magnetorotational core collapse of possible GRB progenitors. IV. A wider range of progenitors
• Fallback accretion powered supernova light curves based on a neutrino-driven explosion simulation of a 40 Msun star
• Chemical stratification in a long gamma-ray burst cocoon and early-time spectral signatures of supernovae associated with gamma-ray bursts
• Signature of Collapsars as Sources for High-energy Neutrinos and $r$-process Nuclei
• Variety of disk wind-driven explosions in massive rotating stars
• Diagnosing The Ejecta Properties of Engine-Driven Supernovae from Observables in Their Initial Phase
• Exploring GRBs and supernovae connection: does a superluminous hypernova population exist?
• Gravo-thermal catastrophe in gravitational collapse and energy progenitor of Gamma-Ray Bursts
• Fast Transients from Magnetic Disks Around Non-Spinning Collapsar Black Holes