Results 101 to 110 of about 2,382,221 (211)

Constraints on alternatives to supermassive black holes [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2006
Abstract Observations of the centres of galaxies continue to evolve, and it is useful to take a fresh look at the constraints that exist on alternatives to supermassive black holes at their centres. We discuss constraints complementary to those of Maoz and demonstrate that an extremely wide range of other possibilities can be excluded ...
openaire   +2 more sources

A Comparison of the X-Ray Polarimetric Properties of Stellar and Supermassive Black Holes

open access: yesThe Astrophysical Journal
X-ray polarization provides a new way to probe accretion geometry in black hole systems. If the accretion geometry of black holes is similar regardless of mass, we should expect the same to be true of their polarization properties.
M. Lynne Saade   +3 more
doaj   +1 more source

Tidal disruption flares from stars on eccentric orbits

open access: yesEPJ Web of Conferences, 2012
We study tidal disruption and subsequent mass fallback for stars approaching supermassive black holes on bound orbits, by performing three dimensional Smoothed Particle Hydrodynamics simulations with a pseudo-Newtonian potential.
Loeb A., Stone N., Hayasaki K.
doaj   +1 more source

Supermassive Black Holes and the Evolution of Galaxies

open access: yes, 1998
20 pages, - This is a near-duplicate of the paper in Nature 395, A14, 1998 (Oct 1)
Richstone, D   +13 more
openaire   +3 more sources

Close supermassive binary black holes [PDF]

open access: yesNature, 2010
Nature in press. 4 pages, 1 figure [Title, abstract, text, and references shortened to conform to journal requirements]
openaire   +3 more sources

Supermassive black holes in spiral galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2004
6 pages, 5 figures, to be published in "The Interplay among Black Holes, Stars and ISM in Galactic Nuclei," Th. Storchi Bergmann, L.C. Ho & H.R.
openaire   +2 more sources

Supermassive Black Holes

open access: yes, 2007
26 pages, 15 figures, to appear in "Kerr Spacetime: Rotating Black Holes in General Relativity" eds. D.L. Wiltshire, M. Visser and S.M. Scott, (Cambridge Univ. Press)
openaire   +2 more sources

Connecting Galaxies and Supermassive Black Holes: Meso-scale Simulations of Multiphase Accretion Flows

open access: yes, 2022
Data management plan for the grant, "Connecting Galaxies and Supermassive Black Holes: Meso-scale Simulations of Multiphase Accretion Flows." It proposes to study how gas flows onto the supermassive black holes in massive galaxies and galaxy clusters ...
Li, Yuan
core  

Constraints on Alternatives to Supermassive Black Holes

open access: yes, 2020
Observations of the centers of galaxies continue to evolve, and it is useful to take a fresh look at the constraints that exist on alternatives to supermassive black holes at their centers.
M Coleman Miller
core  

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