Results 51 to 60 of about 34,507 (229)
Signatures of primordial black holes as seeds of supermassive black holes [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 It is broadly accepted that Supermassive Black Holes (SMBHs) are located in the centers of most massive galaxies, although there is still no convincing scenario for the origin of their massive seeds. It has been suggested that primordial black holes (PBHs) of masses $\gtrsim 10^{2} M_\odot$ may provide such seeds, which would grow to become SMBHs.
Licia Verde +5 more
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A Unified Model for the Evolution of Galaxies and Quasars [PDF]
, 1999 We incorporate a simple scheme for the growth of supermassive black holes into semi-analytic models that follow the formation and evolution of galaxies in a cold dark matter dominated Universe.
G. Kauffmann, M. Haehnelt, Rees
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A DISPLACED SUPERMASSIVE BLACK HOLE IN M87 [PDF]
The Astrophysical Journal, 2010 ApJ Letters ...
David J. Axon +5 more
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Starburst-AGN Connection: A Lesson from High-z Powerful Radio Galaxies
, 2004 Powerful radio galaxies at high redshift are highly useful in studies of early evolution of AGN-hosting galaxies because their observed optical and near infrared light are dominated by their stellar population rather than the nonthermal continuum emitted
Taniguchi, Yoshiaki
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Evolution of Supermassive Black Holes [PDF]
, 2007 Supermassive black holes (SMBHs) are nowadays believed to reside in most local galaxies, and the available data show an empirical correlation between bulge luminosity - or stellar velocity dispersion - and black hole mass, suggesting a single mechanism for assembling black holes and forming spheroids in galaxy halos. The evidence is therefore in favour
openaire +3 more sources
A Radio Census of Binary Supermassive Black Holes
, 2010 Using archival VLBI data for 3114 radio-luminous active galactic nuclei, we searched for binary supermassive black holes using a radio spectral index mapping technique which targets spatially resolved, double radio-emitting nuclei.
Beasley +56 more
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Supermassive black holes in the early universe [PDF]
Contemporary Physics, 2019 22 pages, 9 figures, Invited Review, Contemporary Physics, in ...
Aaron Smith, Volker Bromm
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Fundamental physics opportunities with future ground-based mm/sub-mm VLBI arrays
Living Reviews in RelativityThe Event Horizon Telescope (EHT) Collaboration recently published the first images of the supermassive black holes in the cores of the Messier 87 and Milky Way galaxies.
Dimitry Ayzenberg +47 more
doaj +1 more source
The Astrophysical JournalAccretion supermassive black holes in the center of active galaxies usually produce “jet”-collimated bipolar outflows of relativistic particles. Magnetic fields near the black hole event horizon may play a crucial role in the formation of jets/outflows ...
Yongyun Chen +6 more
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On the relation between the mass of Compact Massive Objects and their host galaxies [PDF]
, 2017 Supermassive black holes and/or very dense stellar clusters are found in the central regions of galaxies. Nuclear star clusters are present mainly in faint galaxies while upermassive black holes are common in galaxies with masses $\geq 10^{10}$ M$_\odot $
Capuzzo-Dolcetta, R., Melo, I. Tosta e
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