Dark matter effect on black hole accretion disks

Abstract

Comparing different dark matter (DM) models, we explore the DM influence on black hole (BH) accretion disk physics, considering corotating and counterrotating thick accretion tori orbiting a central spinning BH. Our results identify accretion onto a central BH as a good indicator of DM presence, signaling possible DM tracers in accretion physics. We analyze accretion around a spinning BH immersed in perfect-fluid dark matter, cold dark matter and scalar field dark matter. Our investigation addresses observational evidence of distinctive DM effects on toroidal accretion disks and protojet configurations, proving that BH accretion tori immersed in DM can present characteristics, such as interdisk cusp or double tori, which have usually been considered as tracers for superspinars and naked singularity attractors. Therefore, in this context DM influence on the BH geometry could manifest as superspinar mimickers. DM also affects the central spinning attractor energetics associated with accretion physics, and its influence on accretion disks can be searched for in a variation of the central BH energetics as an increase of the mass accretion rates.

References in corpus (15)

• Global General Relativistic MHD Simulation of a Tilted Black-Hole Accretion Disk
• Three-Dimensional Simulations of Magnetized Thin Accretion Disks around Black Holes: Stress in the Plunging Region
• Influence of the relict cosmological constant on accretion discs
• Shadows of Sgr A${}^{\ast }$ Black Hole Surrounded by Superfluid Dark Matter Halo
• General relativistic polytropes with a repulsive cosmological constant
• Perfect Fluid Dark Matter
• Equatorial photon motion in the Kerr-Newman spacetimes with a non-zero cosmological constant
• Direct limits on the interaction of antiprotons with axion-like dark matter
• Efficiency of the Keplerian accretion in the Braneworld Kerr--Newman Spacetimes and mining instability of some naked singularity spacetimes
• Growth of accretion driven scalar hair around Kerr black holes
• Relativistic thick accretion disks: morphology and evolutionary parameters
• RADs energetics and constraints on emerging tori collisions around super-massive Kerr Black Holes
• When Leaving the Solar System: Dark Matter Makes a Difference
• Dragged surfaces. On the accretion tori in the ergoregion
• Jet collision with accreting tori around SMBHs. GRHD and light surfaces constraints in aggregates of misaligned tori

Cited by in corpus (1)

• Energy extraction from Janis-Newman-Winicour naked singularity