Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
Zur Ablage hinzufügen
  Lokale TagsFreigabegeschichteDetailsÜbersicht

Freigegeben
Zeitschriftenartikel

The Bardeen–Petterson effect in accreting supermassive black hole binaries: a systematic approach

MPG-Autoren
/persons/resource/persons231038

Barbieri,  Riccardo
Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)

2004.02894.pdf
(Preprint), 2MB

Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Gerosa, D., Rosotti, G., & Barbieri, R. (2020). The Bardeen–Petterson effect in accreting supermassive black hole binaries: a systematic approach. Monthly Notices of the Royal Astronomical Society, 496(3), 3060-3075. doi:10.1093/mnras/staa1693.


Zitierlink: https://hdl.handle.net/21.11116/0000-0007-4657-9
Zusammenfassung
Disc-driven migration is a key evolutionary stage of supermassive black-hole
binaries hosted in gas-rich galaxies. Besides promoting the inspiral, viscous
interactions tend to align the spins of the black holes with the orbital
angular momentum of the disc. We present a critical and systematic
investigation of this problem, also known as the Bardeen-Petterson effect. We
design a new iterative scheme to solve the non-linear dynamics of warped
accretion discs under the influence of both relativistic frame dragging and
binary companion. We characterize the impact of the disc "critical obliquity",
which marks regions of the parameter space where stationary solutions do not
exist. We find that black-hole spins reach either complete alignment or a
critical configuration. Reaching the critical obliquity might imply that the
disc breaks as observed in hydrodynamical simulations. Our findings are
important to predict the spin configurations with which supermassive black-hole
binaries enter their gravitational-wave driven regime and become detectable by
LISA.