Results 191 to 200 of about 6,949,336 (206)

A semiquantitative general-relativistic model of quasar Markarian 205 interpreted as a massive black hole ejected from NGC 4319

Astrophysics and Space Science, 1982
In 1979 I developed a special-relativistic analysis explaining the discrepancy of observed redshifts of spiral NGC 4319 and its companion quasar Markarian 205 by considering besides the Lorentz time dilatation also the gravitational redshift due to the gravitational field of Markarian 205 interpreted in terms of accretion of mass onto a black hole ...
Z. Hor�k
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GRAVITY GENERATION OF ELECTROMAGNETIC RADIATION AND THE LUMINOSITY OF QUASARS

Modern Physics Letters A, 1998
A mechanism is proposed for the emission of radiation by charged particles in the gravitational field of a quasar whereby the gravitational field is coupled directly to the radiation field of the charge via the principle of equivalence. A generalized Larmor formula for the radiation emitted by a charge at rest in a gravitational field can account for ...
DAVID W. KRAFT, LLOYD MOTZ
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ΛCDM-Rastall cosmology revisited: constraints from a recent Quasars datasample

Classical and quantum gravity
In this paper we study the impact of a recent quasar datasample in the constraint of the free parameters of an extension of general relativity. As a ruler to test, we use Rastall gravity in the context of background cosmology being a simple extension to ...
Jesús Astorga Moreno, K. Jacobo, Salvador Arteaga, M. A. García-Aspeitia, Alberto Hernández Almada   +4 more
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Do All the Quasars and High-excitation Radio Galaxies (HERGs) in the 3CRR Catalog Contain a Magnetically Arrested Disk (MAD)?

Astrophysical Journal
Based on the magnetization, an accretion disk with a large-scale magnetic field can be separated into either standard and normal evolution or magnetically arrested disk (MAD), which are difficult to identify from observations. It is still unclear whether
Shuang-Liang Li, W. Zuo, Xinwu Cao
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A gravity generation of electromagnetic radiation and the luminosity of quasars

Il Nuovo Cimento B, 1972
In this paper a new mechanism is proposed for the omission of radiation by charged particles in a gravitational field whereby the gravitational field is coupled directly to the radiation field of the charge via the principle of equivalence. This leads to a Larmor formula for the electromagnetic power emitted by a charge at rest (on the average) in a ...
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quasar - A Generic Framework for Rapid Development of OPC UA Servers

2015
Proceedings of the 15th Int. Conf.
Schlenker, Stefan, Abalo Miron, Damian, Farnham, Ben, Filimonov, Viatcheslav, Nikiel, Piotr, Soare, Cristian-Valeriu   +5 more
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Problems of Magnetic Field Generation in Galactic Nuclei, Quasars and Radiogalaxies

1988
The recurring theme of the preceding chapters are magnetic fields that permeate the discs of spiral galaxies and their immediate surroundings. In many ways, still more fascinating are the magnetic phenomena in other astronomical species of galactic order: nuclei of galaxies, quasars and radiogalaxies.
A. A. Ruzmaikin, A. M. Shukurov, D. D. Sokoloff   +2 more
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Inspiring the next generation of scientists with their observations of quasars, black holes, Jupiter, and SETI with the Goldstone Apple Valley Radio Telescope, GAVRT

Astronomy Reports, 2017
This paper describes a radio astronomy programfor schools, the Goldstone-AppleValley Radio Telescope,GAVRT. The GAVRT program is designed to bring the inspiration and enthusiasm to a younger generation of teachers and children who learn about science by doing real science, just as Iosif Shklovsky brought to an older generation.
D. L. Jauncey, S. Levin, L. Teitelbaum, M. Hofstadter, J. Arballo, S. McConnell, R. Dorcey, K. Cole, N. Kreuser-Jenkins, J. Leflang, E. Kruzins, L. Ricardo, S. Horiuchi, G. Nagle, C. G. Miro   +14 more
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First generation of quasars

Nature, 2010
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QuASAR: A Question-Driven Structure-Aware Approach for Table-to-Text Generation

Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
WeiJie Liu, Yibin Zheng, Fang Kong
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