Results 201 to 210 of about 159,631 (288)

The missing x-rays in Sgr A*: evidence for - not against - a supermassive black hole

, 1995
H. Falcke, Peter L. Biermann
openalex   +2 more sources

Accretion onto Nearby Supermassive Black Holes: [ITAL]Chandra[/ITAL] Constraints on the Dominant Cluster Galaxy NGC 6166 [PDF]

, 2001
Tiziana Di Matteo, R. M. Johnstone, S. W. Allen, A. C. Fabian   +3 more
openalex   +1 more source

Probing black holes in a dark matter spike of M87 using quasinormal modes

European Physical Journal C: Particles and Fields
Dark matter density can be significantly enhanced by the supermassive black hole at the galactic center, leading to a structure called dark matter spike. Dark matter spike may change the spacetime properties of black holes that constitute deviations from
Dong Liu, Yi Yang, Zheng-Wen Long
doaj   +1 more source

Supermassive Black Holes in BL Lacertae Objects: Estimated Masses and Their Relation to Nuclear Luminosity [PDF]

, 2002
Gaogang Xie, En‐Wei Liang, Z. H. Xie, B. Z. Dai   +3 more
openalex   +1 more source

EIGER. V. Characterizing the Host Galaxies of Luminous Quasars at z ≳ 6

The Astrophysical Journal
We report JWST/NIRCam measurements of quasar host galaxy emissions and supermassive black hole (SMBH) masses for six quasars at 5.9 < z < 7.1 in the Emission-line galaxies and Intergalactic Gas in the Epoch of Reionization (EIGER) project. We obtain deep
Minghao Yue, Anna-Christina Eilers, Robert A. Simcoe, Ruari Mackenzie, Jorryt Matthee, Daichi Kashino, Rongmon Bordoloi, Simon J. Lilly, Rohan P. Naidu   +8 more
doaj   +1 more source

Entropy of the Universe and Hierarchical Dark Matter. [PDF]

Entropy (Basel), 2022
Frampton PH.
europepmc   +1 more source

A common origin of neutralino stars and supermassive black holes [PDF]

, 2002
V. I. Dokuchaev, Yu N Eroshenko
openalex   +1 more source

Collapse of a Rotating Supermassive Star to a Supermassive Black Hole: Analytic Determination of the Black Hole Mass and Spin [PDF]

, 2002
Stuart L. Shapiro, Masaru Shibata
openalex   +1 more source

Using of the Correction Schwarzschild radius Equation and Its Application of the Black Holes

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
  This study is a try to compare between the traditional Schwarzschild’s radius and the equation of Schwarzschild’s radius including the photon’s wavelength that is suggested by Kanarev for black holes to correct the error in the calculation of ...
Majida H. Al-kubaisy
doaj  

Supermassive Dark Star candidates seen by JWST. [PDF]

Proc Natl Acad Sci U S A, 2023
Ilie C, Paulin J, Freese K.
europepmc   +1 more source