Hypercritical accretion during common envelopes in triples leading to binary black holes in the pair-instability-supernova mass gap

Abstract

Hydrodynamic studies of stellar-mass compact objects (COs) in a common envelope (CE)have shown that the accretion rate onto the CO is a few orders of magnitude below the Bondi-Hoyle-Lyttleton (BHL) estimate. This is several orders of magnitude above the Eddington limit and above the limit for neutrino-cooled accretion (i.e., hypercritical accretion, or HCA). Considering that a binary system inside the CE of a third star accretes material at nearly the same rate as a single object of the same total mass, we propose stellar-evolution channels which form binary black hole (BBH) systems with its component masses within the pair-instability supernova (PISN) mass gap. Our model is based on HCA onto the BBH system engulfed into the CE of a massive tertiary star. Furthermore, we propose a mass transfer mode which allows to store mass lost by the binary onto a third star. Through the use of population synthesis simulations for the evolution of BBHs and standard binary-evolution principles for the interaction with a tertiary star, we are able to produce BBHs masses consistent with those estimated for GW190521. We also discuss the massive binary system Mk34 as a possible progenitor of BBHs in the PISN gap, as well as the spin distribution of the observed mergers in the gravitational-wave catalog.

10 pages, 3 figures, 2 tables, submitted. Comments welcome

References in corpus (27)

• GW190521: A Binary Black Hole Merger with a Total Mass of $150M_{\odot }$
• Pulsational Pair-Instability Supernovae
• Properties and astrophysical implications of the 150 Msun binary black hole merger GW190521
• The Evolution of Compact Binary Star Systems
• Candidate Electromagnetic Counterpart to the Binary Black Hole Merger Gravitational Wave Event S190521g
• MOCCA-SURVEY Database I: Coalescing Binary Black Holes Originating From Globular Clusters
• Asymmetric Accretion Flows within a Common Envelope
• Polluting the pair-instability mass gap for binary black holes through super-Eddington accretion in isolated binaries
• Repeated mergers and ejection of black holes within nuclear star clusters
• Massive donors in interacting binaries: effect of metallicity
• Close stellar binary systems by grazing envelope evolution
• The Stellar Merger Scenario for Black Holes in the Pair-instability Gap
• Chirp Mass and Spin of Binary Black Holes from First Star Remnants
• The dynamical formation of LMXBs in dense stellar environments: globular clusters and the inner bulge of M31
• Generation of massive stellar black holes by rapid gas accretion in primordial dense clusters
• Disk formation and jet inclination effects in Common Envelopes
• Simulating the Onset of Grazing Envelope Evolution of Binary Stars
• Weighing Melnick 34: the most massive binary system known
• The Case for Hypercritical Accretion in M33 X-7
• A formation scenario for the triple pulsar PSR J0337+1715: breaking a binary system inside a common envelope
• Estimating the outcomes of common envelope evolution in triple stellar systems
• Planet Hunters TESS IV: A massive, compact hierarchical triple star system TIC 470710327
• Bondi-Hoyle-Lyttleton accretion by binary stars
• GRBs and Hypernova Explosions of Some Galactic Sources
• Binary neutron star merger in common envelope jet supernovae
• Growth of massive black holes at high-z via accretion predominantly driven by magnetic outflows
• How To Spin Black Holes Up In High-Mass X-ray Binaries And Not Merge In The Attempt

Cited by in corpus (3)

• Impact of gas hardening on the population properties of hierarchical black hole mergers in AGN disks
• Prompt stellar and binary black hole mergers in tight triples: Insights from chemically homogeneous evolution
• Impacts of the ${}^{12}\mathrm{C}{\left(\alpha ,\gamma \right)}^{16}\mathrm{O}$ reaction rate on ${}^{56}\mathrm{Ni}$ nucleosynthesis in pair-instability supernovae