Results 121 to 130 of about 163,876 (250)

Tidal disruption flares from stars on eccentric orbits

EPJ 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

Relativistic Collapse of Rotating Supermassive Stars to Supermassive Black Holes

, 2003
There is compelling evidence that supermassive black holes (SMBHs) exist. Yet the origin of these objects, or their seeds, is still unknown. We are performing general relativistic simulations of gravitational collapse to black holes in different ...
Shapiro, Stuart L.
core   +2 more sources

Gravitational lensing effects of supermassive black holes in cluster environments [PDF]

, 2022
Guillaume Mahler, Priyamvada Natarajan, Mathilde Jauzac, Johan Richard   +3 more
openalex   +1 more source

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

The 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, Philip Kaaret, Ioannis Liodakis, Steven R. Ehlert   +3 more
doaj   +1 more source

High Proper‐Motion Stars in the Vicinity of Sagittarius A*: Evidence for a Supermassive Black Hole at the Center of Our Galaxy [PDF]

, 1998
A. M. Ghez, B. Klein, M. Morris, E. E. Becklin   +3 more
openalex   +1 more source

Towards measuring supermassive black hole masses with interferometric\n observations of the dust continuum [PDF]

, 2022
A. Amorim, G. Bourdarot, W. Brandner, Yixian Cao, Y. Clénet, R. Davies, P. T. de Zeeuw, Jason Dexter, A. Drescher, A. Eckart, F. Eisenhauer, Maximilian Fabricius, N. Förster Schreiber, P. Garcia, R. Genzel, S. Gillessen, ‪Damien Gratadour‬, S. Hönig, M. Kishimoto, S. Lacour, D. Lutz, F. Millour, H. Netzer, T. Ott, T. Paumard, K. Perraut, G. Perrin, B. M. Peterson, Pierre-Olivier Petrucci, O. Pfuhl, M. Prieto, Daniel Rouan, D. Santos, J. Shangguan, Thomas Shimizu, A. Sternberg, C. Straubmeier, E. Sturm, L. Tacconi, K. R. W. Tristram, F. Widmann, J. Woillez   +41 more
openalex   +1 more source

Bayesian Black Hole Photogrammetry

The Astrophysical Journal
We propose an analytic dual-cone accretion model for horizon-scale images of the cores of low-luminosity active galactic nuclei, including those observed by the Event Horizon Telescope (EHT).
Dominic O. Chang, Michael D. Johnson, Paul Tiede, Daniel C. M. Palumbo   +3 more
doaj   +1 more source

Evolution of supermassive stars as a pathway to black hole formation

, 2009
Supermassive stars, with masses greater than a million solar masses, are possible progenitors of supermassive black holes in galactic nuclei. Because of their short nuclear burning timescales, such objects can be formed only when matter is able to ...
Begelman, Begelman, Begelman, Begelman, Begelman, Bisnovatyi-Kogan, Blandford, Blandford, Bondi, Bromm, Burbidge, Clayton, Fowler, Fowler, Fuller, Hoyle, Hoyle, Iben, Levine, Mathews, Mitchell C. Begelman, Narayan, Narayan, Ozernoy, Quataert, Regan, Trenti, Trenti, Wise, Woosley   +29 more
core   +1 more source

CONSTRAINING SUB-PARSEC BINARY SUPERMASSIVE BLACK HOLES IN QUASARS WITH MULTI-EPOCH SPECTROSCOPY. II. THE POPULATION WITH KINEMATICALLY OFFSET BROAD BALMER EMISSION LINES [PDF]

, 2014
Xin Liu, Yue Shen, Fuyan Bian, Abraham Loeb, Scott Tremaine   +4 more
openalex   +1 more source

Emission Signatures from Subparsec Binary Supermassive Black Holes. III. Comparison of Models with Observations [PDF]

, 2020
Khai Nguyen, Tamara Bogdanović, Jessie C. Runnoe, Michael Eracleous, Steinn Sigurðsson, Todd A. Boroson   +5 more
openalex   +1 more source