Results 111 to 120 of about 38,906 (246)

Gravitational lensing by a charged black hole of string theory

, 2003
We study gravitational lensing by the Gibbons-Maeda-Garfinkle-Horowitz-Strominger (GMGHS) charged black hole of heterotic string theory and obtain the angular position and magnification of the relativistic images. Modeling the supermassive central object
A. Bhadra, A. Bhadra, A. Sen, C.G. Callan, D. Garfinkle, D. Garfinkle, D. Richstone, D.J. Gross, E.F. Eiroa, G.W. Gibbons, G.W. Gibbons, J. Magorrian, J. Scherk, J.D. Gegenberg, K.S. Virbhadra, K.S. Virbhadra, R. Myers, S. Frittelli, V. Bozza, V. Bozza   +19 more
core   +1 more source

A Supermassive Black Hole in an Ultracompact Dwarf Galaxy

, 2014
Ultracompact dwarf galaxies (UCDs) are among the densest stellar systems in the universe. These systems have masses up to 200 million solar masses, but half light radii of just 3-50 parsecs.
Baumgardt, Holger, Bosch, Remco van den, Brodie, Jean, Brok, Mark den, Chilingarian, Igor, Frank, Matthias, Hilker, Michael, McDermid, Richard, Mieske, Steffen, Neumayer, Nadine, Seth, Anil, Spitler, Lee, Strader, Jay, Walsh, Jonelle L.   +13 more
core   +1 more source

Cosmology, primordial black holes, and supermassive particles [PDF]

, 1985
A. G. Polnarev, Maxim Khlopov
openalex   +1 more source

Supermassive black holes in spiral galaxies [PDF]

Proceedings of the International Astronomical Union, 2004
6 pages, 5 figures, to be published in "The Interplay among Black Holes, Stars and ISM in Galactic Nuclei," Th. Storchi Bergmann, L.C. Ho & H.R.
openaire   +3 more sources

Conceptual Analogies Between Multi-Scale Feeding and Feedback Cycles in Supermassive Black Hole and Cancer Environments. [PDF]

Front Oncol, 2021
Santoni M, Tombesi F, Cimadamore A, Montironi R, Piva F.   +4 more
europepmc   +1 more source

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

Strong field gravitational lensing by a charged Galileon black hole

, 2016
Strong field gravitational lensings are dramatically disparate from those in the weak field by representing relativistic images due to light winds one to infinity loops around a lens before escaping.
Xie, Yi, Zhao, Shan-Shan
core   +1 more source

Observational Evidence for Supermassive Black Holes [PDF]

, 1989
Alan Dressler
openalex   +1 more source

Observational Evidence for a Correlation between the Magnetic Field of Jets and Star Formation Rate in Host Galaxies

The Astrophysical Journal
Accretion 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, Qiusheng Gu, Junhui Fan, Xiaotong Guo, Xiaoling Yu, Nan Ding, Dingrong Xiong   +6 more
doaj   +1 more source

Detection of Periodic Radio Signal from the Blazar J1043+2408

Galaxies, 2018
The search for periodic signals from blazars has become a widely discussed topic in recent years. In the scenario that such periodic changes originate from the innermost regions of blazars, the signals bear imprints of the processes occurring near the ...
Gopal Bhatta
doaj   +1 more source