Stellar dynamics and black holes
نویسندگان
چکیده
منابع مشابه
Stellar Dynamics around Black Holes in Galactic Nuclei
We classify orbits of stars that are bound to central black holes in galactic nuclei. The stars move under the combined gravitational influences of the black hole and the central star cluster. Within the sphere of influence of the black hole, the orbital periods of the stars are much shorter than the periods of precession. We average over the orbital motion and end up with a simpler problem and...
متن کاملInfluence of Black Holes on Stellar Orbits
We review the current state of dynamical modeling for galaxies in terms of being able to measure both the central black hole mass and stellar orbital structure. Both of these must be known adequately to measure either property. The current set of dynamical models do provide accurate estimates of the black hole mass and the stellar orbital distribution. Generally, these models are able to measur...
متن کاملMergers of accreting stellar-mass black holes
We present post-Newtonian N -body simulations on mergers of accreting stellarmass black holes (BHs), where such general relativistic effects as the pericentre shift and gravitational wave emission are taken into consideration. To elucidate the key physics that regulates mergers of BHs, the dynamical friction and the mass accretion by ambient gas are incorporated. We consider a system composed o...
متن کاملThe Mass Distribution of Stellar Black Holes
We examine the distribution of masses of black holes in transient low mass X-ray binary systems. A Bayesian analysis suggests that it is probable that six of the seven systems with measured mass functions have black hole masses clustered near seven solar masses. There appears to be a significant gap between the masses of these systems and those of the observed neutron stars. The remaining sourc...
متن کاملStellar Tidal Processes Near Massive Black Holes
Close tidal interactions of stars with a central massive black hole (MBH) or with other stars in the high density cusp around it can affect a significant fraction of the stellar population within the MBH radius of influence. We consider three strong processes that have the potential of modifying stellar structure and evolution there. (1) Tidal spin-up by hyperbolic star-star encounters. (2) Tid...
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ژورنال
عنوان ژورنال: Pramana
سال: 2011
ISSN: 0304-4289,0973-7111
DOI: 10.1007/s12043-011-0123-2