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A General Outlook on the Quasars
, 1968 Since my main field of research is astrophysics, I suppose that when asking me to present this paper, Professor Ramakrishnan probably intended to stress the point that the Institute of Mathematical Sciences, which is so rapidly and vigorously developing from year to year, after having extended the domain of its activities from theoretical physics to ...
N. Dallaporta
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The Astrophysical Journal, 1981 Established techniques permitting the evaluation of exact asymptotic forms of photon escape probabilities for a wide range of absorption coefficient profile types are used for QSO radiative transfer effect studies, and it is shown that the exact formulae are easily evaluated.
R. C. Puetter
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The DACs and SACs Effects From Stars to Quasars. Some First General Notices
AIP Conference Proceedings, 2007 The spectra of Hot Emission Stars and AGNs present peculiar profiles that result from dynamical processes such as accretion and/or ejection of matter from these objects. In this paper we explain the idea of DACs and SACs phenomena, as a reason of spectral lines peculiarity in Hot Emission Stars and AGNs.
Emmanouel Danezis +7 more
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Cosmological constraints from the Hubble diagram of quasars at high redshifts
Nature Astronomy, 2018The concordance model (Λ cold dark matter (ΛCDM) model, where Λ is the cosmological constant) reproduces the main current cosmological observations1–4 assuming the validity of general relativity at all scales and epochs and the presence of CDM and of Λ ...
G. Risaliti, E. Lusso
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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, 1998A 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 gravityIn 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 +4 more
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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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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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quasar - A Generic Framework for Rapid Development of OPC UA Servers
2015Proceedings of the 15th Int. Conf.
Schlenker, Stefan +5 more
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A gravity generation of electromagnetic radiation and the luminosity of quasars
Il Nuovo Cimento B, 1972In 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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