A critical examination of thick disks with equatorial accretion

Abstract

view Abstract Citations (3) References (9) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A Critical Examination of Thick Disks with Equatorial Accretion Hunter, J. H., Jr. ; Wilson, R. E. Abstract In order to deal with the problem of accretion disks around black holes, numerous models have been introduced during the past five years. The present paper is in particular concerned with the models discussed by Paczynski and Abramowicz (1982), taking into account a reproduction of the numerical integrations. Attention is given to details regarding the integration of the differential equations, the interior structure, model refinements, and cusp energetics. It is concluded that the structure of thick accretion disks of the type proposed by Paczynski and Abramowicz is extraordinary sensitive to the conditions at large radii. At some places in parameter space, only a minute change in the starting values separates two very different families of solutions. It is speculated that the solutions are globally unstable, even though they are stable to local axisymmetric perturbations by the Hoiland criterion. Publication: The Astrophysical Journal Pub Date: March 1986 DOI: 10.1086/163967 Bibcode: 1986ApJ...302...11H Keywords: Accretion Disks; Stellar Mass Accretion; Stellar Models; Thickness; Angular Momentum; Black Holes (Astronomy); Differential Equations; Radii; Stellar Orbits; Stellar Structure; Astrophysics; STARS: ACCRETION full text sources ADS | Related Materials (1) Erratum: 1986ApJ...308.1018H