Results 81 to 90 of about 34,507 (229)
M87 Supermassive Black Hole Review
International Journal of Science and Research (IJSR), 2021 M87 is a giant elliptical galaxy in the Virgo cluster of galaxies. The radio source has a core which coincides with the nucleus of the galaxy and a jet of emission which is detected from radio to X-ray bands. A supermassive black hole is assumed to be at the centre of M87 which sends out relativistic particles in the form jets along its axis of ...
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Observational implications of cosmologically coupled black holes
The Open Journal of Astrophysics, 2023 It was recently suggested that "cosmologically coupled" black holes with masses that increase in proportion to the volume of the Universe might constitute the physical basis of dark energy.
Sohan Ghodla +3 more
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Powerful jets from accreting black holes: evidence from the optical and infrared
, 2010 A common consequence of accretion onto black holes is the formation of powerful, relativistic jets that escape the system. In the case of supermassive black holes at the centres of galaxies this has been known for decades, but for stellar-mass black ...
Fender, R. P., Russell, D. M.
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On the location of the supermassive black hole in CTA 102 [PDF]
Astronomy & Astrophysics, 2015 Relativistic jets in active galactic nuclei represent one of the most powerful phenomena in the Universe. They form in the surroundings of the supermassive black holes as a by-product of accretion onto the central black hole in active galaxies. The flow in the jets propagates at velocities close to the speed of light.
J. Anton Zensus +6 more
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The Cosmic History of Black Hole Growth from Deep Multiwavelength Surveys
Advances in Astronomy, 2012 Significant progress has been made in the last few years on understanding how supermassive black holes form and grow. In this paper, we begin by reviewing the spectral signatures of active galactic nuclei (AGN) ranging from radio to hard X-ray ...
Ezequiel Treister, C. Megan Urry
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The Astrophysical Journal, 2023 The early evolution of the quasar luminosity function (QLF) and black hole mass function (BHMF) encodes key information on the physics determining the radiative and accretion processes of supermassive black holes (BHs) in high- z quasars.
Wenxiu Li +3 more
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, 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 +39 more
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Phenomenological Analogies in Black Hole Systems of all Masses
, 2004 I review the progress made on the physics of relativistic jets from black hole systems in the context of the analogy between AGN and microquasars that was proposed one decade ago.
Mirabel, I. F.
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The Astrophysical JournalMany stellar-mass black holes (sBHs) are expected to orbit supermassive black holes at galactic centers. For galaxies with active galactic nuclei, it is likely that the sBHs reside in a disk.
Barak Rom, Re’em Sari, Dong Lai
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Supermassive Black Holes and Galaxy Formation [PDF]
, 2002 Abstract Predicted by the theory of general relativity, black holes are among the strangest objects known to exist. A point in space usually has a past and a future. An explosion is an example of a point in space–time. The explosion is both at a specific point in space and at a specific time.
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