J 2022

Dark matter effect on black hole accretion disks

PUGLIESE, Daniela and Zdeněk STUCHLÍK

Basic information

Original name

Dark matter effect on black hole accretion disks

Authors

PUGLIESE, Daniela (380 Italy, belonging to the institution) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution)

Edition

Physical Review D, 2022, 2470-0010

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

RIV identification code

RIV/47813059:19630/22:A0000201

Organization unit

Institute of physics in Opava

DOI

http://dx.doi.org/10.1103/PhysRevD.106.124034

UT WoS

000907566200004

Keywords in English

motion;tori;simulations;constraints;orbits;flow

Tags

, RIV23

Tags

International impact, Reviewed
Změněno: 30/1/2023 11:27, Mgr. Pavlína Jalůvková

Abstract

V originále

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.
Displayed: 29/12/2024 15:45