Results 161 to 170 of about 159,631 (288)

Supermassive black holes in spiral galaxies [PDF]

Proceedings 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   +3 more sources

Tidal disruption of stars by supermassive black holes: The X-ray view

EPJ Web of Conferences, 2012
The tidal disruption of stars by supermassive black holes produces luminous soft X-ray accretion flares in otherwise inactive galaxies. First events have been discovered in X-rays with the ROSAT observatory, and have more recently been detected with XMM ...
Komossa S.
doaj   +1 more source

Observational Evidence for Supermassive Black Holes [PDF]

, 1989
Alan Dressler
openalex   +1 more source

Supermassive Black Holes and Galaxy Morphology [PDF]

Astrophysics and Space Science, 1999
Invited Review, to appear in Proceedings "Towards a New Millennium in Galaxy Morphology" ed .
openaire   +3 more sources

Updated Mass Scaling Relations for Nuclear Star Clusters and a Comparison to Supermassive Black Holes

, 2013
We investigate whether nuclear star clusters and supermassive black holes follow a common set of mass scaling relations with their host galaxy's properties, and hence can be considered to form a single class of central massive object.
Alister W. Graham, Balcells, Balcells, Bekki, Bell, Bell, Côté, de Vaucouleurs, Ebisuzaki, Ferrarese, Ferrarese, Ferrarese, Gebhardt, González Delgado, Graham, Graham, Graham, Graham, Graham, Graham, Häring, Jarrett, Jorgensen, Kormendy, Magorrian, Marconi, McLaughlin, Mei, Merritt, Merritt, Mieske, Nicholas Scott, Novak, O'Leary, Schlegel, Seth, Silk, Tremaine, Turner, Wehner   +39 more
core   +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

Primordial black holes as supermassive black hole seeds

Journal of Cosmology and Astroparticle Physics
Abstract The presence of supermassive black holes (SMBHs, M • ∼ 106-10 M ⊙) in the first cosmic Gyr (z ≳ 6) challenges current models of BH formation and evolution. We propose a novel mechanism for the formation of early SMBH seeds based on primordial black holes (PBHs).
F. Ziparo, S. Gallerani, A. Ferrara
openaire   +2 more sources

Gravitational lensing by deformed Horava-Lifshitz black hole in rainbow gravity

Physics Letters B
In this study, we investigate the gravitational lensing effects of deformed Horava-Lifshitz black holes, considering both strong and weak-field limit approximations and incorporating the impact of rainbow functions.
Aniruddha Ghosh, Ujjal Debnath
doaj  

The Millennium Galaxy Catalogue: The $M_{bh}$--$L_{spheroid}$ derived supermassive black hole mass function

, 2009
Supermassive black hole mass estimates are derived for 1743 galaxies from the Millennium Galaxy Catalogue using the recently revised empirical relation between supermassive black hole mass and the luminosity of the host spheroid.
Alister W. Graham, Allen, Aller, Balcells, Begelman, Bertin, Cameron, Cao, Caon, Croton, Di Matteo, Driver, Driver, Driver, Driver, Driver, Drory, Ferrarese, Ferrarese, Gallo, Gebhardt, Graham, Graham, Graham, Graham, Graham, Graham, Graham, Graham, Granato, Greene, Hopkins, Hopkins, Hopkins, Hopkins, Hu, Häring, Jochen Liske, Kormendy, Koushiappas, Lauer, Liske, Magorrian, Marconi, Marina Vika, Novak, Pipino, Richards, Robertson, Salucci, Satyapal, Shankar, Shankar, Shankar, Sheth, Shields, Silk, Simon P. Driver, Soltan, Tamura, Tegmark, Tundo, Ueda, Volonteri, Woo, Yu   +65 more
core   +1 more source

Pair Plasma Production in a Force‐free Magnetosphere around a Supermassive Black Hole [PDF]

, 1998
Kouichi Hirotani, Isao Okamoto
openalex   +1 more source