Results 121 to 130 of about 55,540 (200)

Astrophysical Evidence for Black Holes

open access: yes, 1997
The case for collapsed objects in some X-ray binary systems continues to strengthen. But there is now even firmer evidence for supermassive black holes in galactic centres. Gravitational collapse seems to have occurred in the centres of most newly-forming galaxies, manifesting itself in a phase of quasar-like activity (which may be reactivated later ...
openaire   +2 more sources

Identification of Astrophysical Black Holes

open access: yes, 1998
Latex 55 pages plus 19 postscript figures included. Accepted for publication (March 2nd, 1998) by Indian Journal of Physics (Review Section)
openaire   +2 more sources

Simulating ULXs and Blazars as GRMHD Accretion Flows Around a Black Hole

open access: yesThe Astrophysical Journal
General relativistic magnetohydrodynamic (GRMHD) simulations have been instrumental in our understanding of high-energy astrophysical phenomena over the past two decades.
Mayank Pathak, Banibrata Mukhopadhyay
doaj   +1 more source

Tracking the Assembly of Supermassive Black Holes: A Comparison of Diverse Models across Cosmic Time

open access: yesThe Astrophysical Journal
Galaxies grow alongside central supermassive black holes (SMBHs) through fueling and feedback. However, the origins of this coevolution remain unclear and vary across modeling frameworks.
Antonio J. Porras-Valverde   +5 more
doaj   +1 more source

Observability of Isolated Stellar-mass Black Holes

open access: yesThe Astrophysical Journal Letters
Stellar-mass black holes (BHs) represent the natural end states of massive stars. It is estimated that 10 ^8 stellar-mass BHs are present in the Milky Way galaxy, a significant fraction of which are expected to be isolated.
Lena Murchikova, Kailash C. Sahu
doaj   +1 more source

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