Black hole to breakout: 3D GRMHD simulations of collapsar jets reveal a wide range of transients

Ore Gottlieb*, Aretaios Lalakos, Omer Bromberg, Matthew Liska, Alexander Tchekhovskoy

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We present a suite of the first 3D GRMHD collapsar simulations, which extend from the self-consistent jet launching by an accreting Kerr black hole (BH) to the breakout from the star. We identify three types of outflows, depending on the angular momentum, l, of the collapsing material and the magnetic field, B, on the BH horizon: (i) subrelativistic outflow (low l and high B), (ii) stationary accretion shock instability (SASI; high l and low B), (iii) relativistic jets (high l and high B). In the absence of jets, free-fall of the stellar envelope provides a good estimate for the BH accretion rate. Jets can substantially suppress the accretion rate, and their duration can be limited by the magnetization profile in the star. We find that progenitors with large (steep) inner density power-law indices (∼2), face extreme challenges as gamma-ray burst (GRB) progenitors due to excessive luminosity, global time evolution in the light curve throughout the burst and short breakout times, inconsistent with observations. Our results suggest that the wide variety of observed explosion appearances (supernova/supernova + GRB/low-luminosity GRBs) and the characteristics of the emitting relativistic outflows (luminosity and duration) can be naturally explained by the differences in the progenitor structure. Our simulations reveal several important jet features: (i) strong magnetic dissipation inside the star, resulting in weakly magnetized jets by breakout that may have significant photospheric emission and (ii) spontaneous emergence of tilted accretion disc-jet flows, even in the absence of any tilt in the progenitor.

Original languageEnglish (US)
Pages (from-to)4962-4975
Number of pages14
JournalMonthly Notices of the Royal Astronomical Society
Volume510
Issue number4
DOIs
StatePublished - Mar 1 2022

Keywords

  • Gamma-ray bursts
  • Methods: numerical
  • Stars: Wolf-Rayet

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint

Dive into the research topics of 'Black hole to breakout: 3D GRMHD simulations of collapsar jets reveal a wide range of transients'. Together they form a unique fingerprint.

Cite this