Results 11 to 20 of about 1,324 (259)

THE MASS DISTRIBUTION OF STELLAR-MASS BLACK HOLES [PDF]

open access: yesThe Astrophysical Journal, 2011
We perform a Bayesian analysis of the mass distribution of stellar-mass black holes using the observed masses of 15 low-mass X-ray binary systems undergoing Roche lobe overflow and five high-mass, wind-fed X-ray binary systems. Using Markov Chain Monte Carlo calculations, we model the mass distribution both parametrically---as a power law, exponential,
Farr, Will M.   +6 more
openaire   +4 more sources

Constraints on the Cosmological Coupling of Black Holes from the Globular Cluster NGC 3201

open access: yesThe Astrophysical Journal Letters, 2023
Globular clusters are among the oldest stellar populations in the Milky Way; consequently, they also host some of the oldest known stellar-mass black holes, providing insight into black hole formation and evolution in the early ( z ≳ 2) universe.
Carl L. Rodriguez
doaj   +1 more source

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

Close encounters of black hole—star binaries with stellar-mass black holes

open access: yesMonthly Notices of the Royal Astronomical Society, 2023
ABSTRACT Dynamical interactions involving binaries play a crucial role in the evolution of star clusters and galaxies. We continue our investigation of the hydrodynamics of three-body encounters, focusing on binary black hole (BBH) formation, stellar disruption, and electromagnetic (EM) emission in dynamical interactions between a BH ...
Taeho Ryu   +5 more
openaire   +5 more sources

Stellar‐Mass Black Holes in the Solar Neighborhood [PDF]

open access: yesThe Astrophysical Journal, 2003
We search for nearby, isolated, accreting, ``stellar-mass'' (3 to $100M_\odot$) black holes. Models suggest a synchrotron spectrum in visible wavelengths and some emission in X-ray wavelengths. Of 3.7 million objects in the Sloan Digital Sky Survey Early Data Release, about 150,000 objects have colors and properties consistent with such a spectrum, and
Chisholm, James R.   +2 more
openaire   +2 more sources

AN ANOMALOUS QUIESCENT STELLAR MASS BLACK HOLE [PDF]

open access: yesThe Astrophysical Journal, 2011
5 pages, 4 figures, formatted using emulateapj.cls.
Reynolds, Mark T., Miller, Jon M.
openaire   +3 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

THE BLACK HOLE MASS AND THE STELLAR RING IN NGC 3706 [PDF]

open access: yesThe Astrophysical Journal, 2014
Accepted by ApJ, 14 pages, 9 figures, 1 ...
Gultekin, Kayhan   +6 more
openaire   +4 more sources

Estimating the spins of stellar-mass black holes [PDF]

open access: yes, 2011
We describe a program that we have embarked on to estimate the spins of stellar-mass black holes in X-ray binaries. We fit the continuum X-ray spectrum of the radiation from the accretion disk using the standard thin disk model, and extract the dimensionless spin parameter a* = a/M of the black hole as a parameter of the fit.
McClintock, Jeffrey E.   +2 more
openaire   +2 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

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