Results 131 to 140 of about 37,815 (249)
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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The Astrophysical JournalWe study the impact of environmental effects on the measurement of the Hubble constant ( H _0 ) from gravitational-wave (GW) observations of binary black hole mergers residing in active galactic nuclei (AGNs) near the central supermassive black hole ...
Guo-Peng Li, Xi-Long Fan
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Observational Evidence for Supermassive Black Holes [PDF]
, 1989 Alan Dressler
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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
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 +3 more
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Assembly of supermassive black hole seeds
, 2018 We present a suite of six fully cosmological, three-dimensional simulations of the collapse of an atomic cooling halo in the early Universe. We use the moving-mesh code arepo with an improved primordial chemistry network to evolve the hydrodynamical and ...
Becerra, Fernando +3 more
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Primordial black holes as supermassive black hole seeds
Journal of Cosmology and Astroparticle PhysicsAbstract 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
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Pair Plasma Production in a Force‐free Magnetosphere around a Supermassive Black Hole [PDF]
, 1998 Kouichi Hirotani, Isao Okamoto
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Strong gravitational lensing by braneworld black holes
, 2004 In this paper, we use the strong field limit approach to investigate the gravitational lensing properties of braneworld black holes. Applying this method to the supermassive black hole at the centre of our galaxy, the lensing observables for some ...
D. Langlois +8 more
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Gravitational synchrotron radiation and Penrose process in STVG theory
Physics Letters B, 2023 The paper has explored analogue of gravitational synchrotron massive particle and Penrose process in MOdified Gravity (MOG) known as Scalar-Tensor-Vector-Gravity (STVG).
Bobur Turimov +3 more
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