Growth of stellar mass black holes in dense molecular clouds and GW190521

Abstract

A stellar mass black hole can grow its mass noticeably through Bondi accretion, if it is embedded in an extremely dense and massive molecular cloud with slow motion with respect to the ambient medium for an extended period of time. This provides a novel, yet challenging channel for the formation of massive stellar-mass black holes. We discuss how this channel may account for the massive binary black hole merger system GW190521 as observed by LIGO/Virgo gravitational wave detectors as well as the claimed massive black hole candidate LB-1.

6 pages; accepted for publication in ApJ; matches accepted version

References in corpus (17)

• GW190521: A Binary Black Hole Merger with a Total Mass of $150M_{\odot }$
• Properties and astrophysical implications of the 150 Msun binary black hole merger GW190521
• A wide star-black-hole binary system from radial-velocity measurements
• The GW190521 Mass Gap Event and the Primordial Black Hole Scenario
• The 'hidden' companion in LB-1 unveiled by spectral disentangling
• Very high redshift quasars and the rapid emergence of super-massive black holes
• On the Origin of GW190521-like events from repeated black hole mergers in star clusters
• A new channel to form IMBHs throughout cosmic time
• Beyond the Standard Model Explanations of GW190521
• Formation of GW190521 via gas accretion onto Population III stellar black hole remnants born in high-redshift minihalos
• The role of galactic dynamics in shaping the physical properties of giant molecular clouds in Milky Way-like galaxies
• Generation of massive stellar black holes by rapid gas accretion in primordial dense clusters
• Phase-dependent study of near-infrared disk emission lines in LB-1
• Bondi-Hoyle-Lyttleton accretion by binary stars
• Choked accretion: from radial infall to bipolar outflows by breaking spherical symmetry
• Outflows from inflows: the nature of Bondi-like accretion
• Choked accretion onto a Kerr black hole

Cited by in corpus (23)

• Hierarchical mergers of stellar-mass black holes and their gravitational-wave signatures
• GWTC-2.1: Deep Extended Catalog of Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run
• New binary black hole mergers in the LIGO--Virgo O3a data
• Hierarchical black hole mergers in young, globular and nuclear star clusters: the effect of metallicity, spin and cluster properties
• Search for intermediate mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo
• Population III Binary Black Holes: Effects of Convective Overshooting on Formation of GW190521
• Black hole mergers in compact star clusters and massive black hole formation beyond the mass-gap
• Mass and rate of hierarchical black hole mergers in young, globular and nuclear star clusters
• Gravitational Wave Astronomy With TianQin
• Cosmologically coupled compact objects: a single parameter model for LIGO--Virgo mass and redshift distributions
• Deep learning and Bayesian inference of gravitational-wave populations: Hierarchical black-hole mergers
• Compact Binary Coalescences: Astrophysical Processes and Lessons Learned
• Constraining accretion efficiency in massive binary stars with LIGO-Virgo black holes
• Reconstructing the Genealogy of LIGO-Virgo Black Holes
• High mass but low spin: an exclusion region to rule out hierarchical black-hole mergers as a mechanism to populate the pair-instability mass gap
• Measurability of precession and eccentricity for heavy binary-black-hole mergers
• Mapping the Likelihood of GW190521 with Diverse Mass and Spin Priors
• GW190521 formation scenarios via relativistic accretion
• Dynamical Formation Scenarios for GW190521 and Prospects for Decihertz Gravitational-Wave Astronomy with GW190521-Like Binaries
• Hoyle-Lyttleton accretion on to black hole accretion disks with super-Eddington luminosity for dusty gas
• Recent LIGO-Virgo discoveries
• Gravitational background from dynamical binaries and detectability with 2G detectors
• Capability for detection of GW190521-like binary black holes with TianQin