Star-disc interactions near a massive black hole
نویسندگان
چکیده
منابع مشابه
Binary Dynamics near a Massive Black Hole
We analyze the dynamical evolution of binary stars that interact with a static background of single stars in the environment of a massive black hole (MBH). All stars are considered to be single mass, Newtonian point particles. We follow the evolution of the energy E and angular momentum J of the center of mass of the binaries with respect to the MBH, as well as their internal semi-major axis a,...
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We study the role of massive perturbers (MPs) in deflecting stars and binaries to almost radial (‘‘loss cone’’) orbits, where they pass near the central massive black hole (MBH), interact with it at periapse, and are ultimately destroyed. MPs dominate dynamical relaxation when the ratio of the second moments of the MP and star mass distributions, 2 NphM 2 p i/N?hM 2 ? i, satisfies 2 31. We comp...
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Contents Contents i 1 Stars and singularities: Stellar phenomena near a massive black hole 1 1.1 Introduction 1 1.2 Stellar dynamics near a black hole 3 1.2.1 Physical scales 4 1.2.2 A relaxed stellar system around a MBH 6 1.3 The stellar collider in the Galactic Center 9 1.3.1 The case for a dense stellar cusp in the Galactic Center 9 1.3.2 Tidal spin-up 12 1.3.3 Tidal scattering 13 1.4 The gr...
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The visual distortion effects visible to an observer traveling around and descending to the surface of an extremely compact star are described. Specifically, trips to a “normal” neutron star, a black hole, and an ultracompact neutron star with extremely high surface gravity, are described. Concepts such as multiple imaging, redand blue-shifting, conservation of surface brightness, the photon sp...
متن کاملMassive Perturber-driven Interactions of Stars with a Massive Black Hole
We study the role of massive perturbers (MPs) in deflecting stars and binaries to almost radial (“loss-cone”) orbits, where they pass near the central massive black hole (MBH), interact with it at periapse q, and are ultimately destroyed. MPs dominate dynamical relaxation when the ratio of the 2nd moments of the MP and star mass distributions, μ2 ≡ Np 〈
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1991
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/250.3.505