Negative Dynamical Friction on compact objects moving through dense gas
arXiv:1906.01186 · doi:10.1093/mnras/staa013
Abstract
An over-dense wake is created by a gravitating object moving through a gaseous medium, and this wake pulls back on the object and slows it down. This is conventional dynamical friction in a gaseous medium. We argue that if the object drives a sufficiently powerful outflow, the wake is destroyed and instead an extended under-dense region is created behind the object. In this case the overall gravitational force is applied in the direction of the object's motion, producing a negative dynamical friction (NDF). Black holes in dense gas drive powerful outflows and may experience the NDF, although extensive numerical work is probably needed to demonstrate or refute this conclusively. NDF may be important for stellar-mass black holes and neutron stars inside `common envelopes' in binary systems, for stellar mass black holes inside AGN discs, or for massive black holes growing through super-Eddington accretion in early Universe.
arXiv comment7 pages, 3 figures, submitted to MNRAS
References in corpus (26)
- On the Fate of Gas Accreting at a Low Rate onto a Black Hole
- Massive Black Holes as Population III Remnants
- Dynamical Friction in a Gaseous Medium
- Super-critically accreting stellar-mass black holes as ultraluminous X-ray sources
- The Evolution of Compact Binary Star Systems
- Convection-Dominated Accretion Flows
- A Review of Bondi--Hoyle--Lyttleton Accretion
- Starbursts near supermassive black holes: young stars in the Galactic Center, and gravitational waves in LISA band
- Numerical simulations of super-critical black hole accretion flows in general relativity
- The Nature of SS433 and the Ultraluminous X-ray Sources
- Numerical Simulation of Hot Accretion Flows (III): Revisiting wind properties using trajectory approach
- Hyperaccretion during tidal disruption events: weakly bound debris envelopes and jets
- Radiatively Inefficient Accretion: Breezes, Winds and Hyperaccretion
- The erratic dynamical life of black hole seeds in high-redshift galaxies
- Radiation pressure instability driven variability in the accreting black holes
- Evolution of Accretion Disks in Tidal Disruption Events
- Common Envelope Wind Tunnel: Coefficients of Drag and Accretion in a Simplified Context for Studying Flows Around Objects Embedded Within Stellar Envelopes
- Coorbital thermal torques on low-mass protoplanets
- Super-Eddington Accretion and Feedback from the First Massive Seed Black Holes
- Numerical Parameter Survey of Nonradiative Black Hole Accretion -- Flow Structure and Variability of the Rotation Measure
- Gaseous Dynamical Friction in Presence of Black Hole Radiative Feedback
- Dynamical friction on hot bodies in opaque, gaseous media
- A formation scenario for the triple pulsar PSR J0337+1715: breaking a binary system inside a common envelope
- Mass ratio in SS433 revisited
- Numerical study of dynamical friction with thermal effects -- I. Comparison to linear theory
- 1/2, 1, and 3/2--Law Non-Radiative Accretion Flows
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- Formation and Evolution of Compact Object Binaries in AGN Disks
- Formation Rate of Extreme Mass Ratio Inspirals in Active Galactic Nuclei
- Very high redshift quasars and the rapid emergence of super-massive black holes
- Electromagnetic Counterparts to Massive Black Hole Mergers
- Evolution of gas disc-embedded intermediate mass ratio inspirals in the LISA band
- Wet Extreme Mass Ratio Inspirals May Be More Common For Spaceborne Gravitational Wave Detection
- Detectable environmental effects in GW190521-like black-hole binaries with LISA
- Star Formation in Accretion Disks and SMBH Growth
- The importance of black hole repositioning for galaxy formation simulations
- Gravitational-wave detection and parameter estimation for accreting black-hole binaries and their electromagnetic counterpart
- Supernova explosions in active galactic nuclear discs
- In-situ extreme mass ratio inspirals via sub-parsec formation and migration of stars in thin, gravitationally unstable AGN discs
- Can stellar-mass black hole growth disrupt disks of active galactic nuclei? The role of mechanical feedback
- Binary formation through gas-assisted capture and the implications for stellar, planetary and compact-object evolution
- The Effect of Thermal Torques on AGN Disc Migration Traps and Gravitational Wave Populations
- Jet Formation in 3D GRMHD Simulations of Bondi-Hoyle-Lyttleton Accretion
- Simulation of a Compact Object with Outflows Moving Through a Gaseous Background
- Massive Black Hole Binaries from the TNG50-3 Simulation: I. Coalescence and LISA Detection Rates
- Gaseous dynamical friction under radiative feedback: do intermediate-mass black holes speed up or down?
- The Role of Outflow Feedback on Accretion of Compact Objects in Accretion Disk of Active Galactic Nuclei
- Local Simulations of Heating Torques on a Luminous Body in an Accretion Disk
- Mechanical feedback effects on primordial black hole accretion
- Blackhole Mergers Through Evection Resonances
- Hydrodynamics and survivability during post-main-sequence planetary engulfment
- The Detectability of Kiloparsec Scale Dual AGNs: The Impact of Galactic Structure and Black Hole Orbital Properties
- The Pairing Probability of Massive Black Holes in Merger Galaxies in the Presence of Radiative Feedback
- Dynamical evolution of massive black hole pairs in the presence of spin-dependent radiative feedback
- 3D hydrodynamical simulations of the impact of mechanical feedback on accretion in supersonic stellar-mass black holes
- Dynamical friction of a massive black hole in a turbulent gaseous medium
- Dynamical Effects of Colliding Outflows in Binary Systems
- Astrophysics with the Laser Interferometer Space Antenna
- Eccentricity Evolution in Gaseous Dynamical Friction