Results 21 to 30 of about 63,717 (334)

STELLAR-MASS BLACK HOLES IN YOUNG GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2011
Astrophysical Journal, in press, August 10, 2011, 26 pages, 8 ...
Wheeler, J. Craig, Johnson, Vincent
openaire   +2 more sources

JWST CEERS and JADES Active Galaxies at z = 4–7 Violate the Local M •–M ⋆ Relation at >3σ: Implications for Low-mass Black Holes and Seeding Models

open access: yesThe Astrophysical Journal Letters, 2023
JWST is revolutionizing our understanding of the high- z Universe by expanding the black hole horizon, looking farther and to smaller masses, and revealing the stellar light of their hosts.
Fabio Pacucci   +4 more
doaj   +1 more source

Can stellar mass black holes be quark stars? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2009
We investigate the possibility that stellar mass black holes, with masses in the range of $3.8M_{\odot}$ and $6M_{\odot}$, respectively, could be in fact quark stars in the Color-Flavor-Locked (CFL) phase. Depending on the value of the gap parameter, rapidly rotating CFL quark stars can achieve much higher masses than standard neutron stars, thus ...
Harko, T, Kovács, Z, Cheng, KS
openaire   +5 more sources

Indirect Evidence for Dark Matter Density Spikes around Stellar-mass Black Holes

open access: yesThe Astrophysical Journal Letters, 2023
It has been suggested for a long time that dark matter would form a density spike around a black hole. However, no promising evidence has been observed so far to verify this theoretical suggestion.
Man Ho Chan, Chak Man Lee
doaj   +1 more source

The effect of stellar-mass black holes on the structural evolution of massive star clusters [PDF]

open access: yes, 2007
We present the results of realistic N-body modelling of massive star clusters in the Magellanic Clouds, aimed at investigating a dynamical origin for the radius-age trend observed in these systems.
Davies, M. B.   +3 more
core   +1 more source

ACCRETION ONTO THE FIRST STELLAR-MASS BLACK HOLES [PDF]

open access: yesThe Astrophysical Journal, 2009
4 pages, 4 figures, submitted to ApJ Letters, see http://slac.stanford.edu/~malvarez/FirstBH for high resolution figures and ...
Alvarez, Marcelo A.   +2 more
openaire   +3 more sources

A Comparison of Intermediate Mass Black Hole Candidate ULXs and Stellar-Mass Black Holes [PDF]

open access: yes, 2004
Cool thermal emission components have recently been revealed in the X-ray spectra of a small number of ultra-luminous X-ray (ULX) sources with L_X > 1 E+40 erg/s in nearby galaxies.
A. C. Fabian   +5 more
core   +1 more source

ON THE MAXIMUM MASS OF STELLAR BLACK HOLES [PDF]

open access: yesThe Astrophysical Journal, 2010
15 pages, ApJ ...
Belczynski, Krzysztof   +6 more
openaire   +3 more sources

Radio Emission from an Ultraluminous X-Ray Source [PDF]

open access: yes, 2003
The physical nature of ultraluminous x-ray sources is uncertain. Stellar mass black holes with beamed radiation and intermediate mass black holes with isotropic radiation are two plausible explanations.
Corbel, Stephane   +3 more
core   +3 more sources

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