Results 11 to 20 of about 7,672 (248)

Demographics of Hierarchical Black Hole Mergers in Dense Star Clusters

open access: yesThe Astrophysical Journal, 2023
With about one hundred mergers of binary black holes (BBHs) detected via gravitational waves by the LIGO-Virgo-KAGRA (LVK) Collaboration, our understanding of the darkest objects in the universe has taken unparalleled steps forward.
Giacomo Fragione, Frederic A. Rasio
doaj   +1 more source

Constraints on relic magnetic black holes

open access: yesJournal of High Energy Physics, 2022
We present current direct and astrophysical limits on the cosmological abundance of black holes with extremal magnetic charge. Such black holes do not Hawking radiate, allowing those normally too light to survive to the present to do so.
Melissa D. Diamond, David E. Kaplan
doaj   +1 more source

Synchronizing the EMRIs and IMRIs in AGN Accretion Disks

open access: yesThe Astrophysical Journal, 2023
Extreme-mass-ratio inspirals (EMRIs) and intermediate-mass-ratio inspirals (IMRIs) are important gravitational-wave (GW) sources for the Laser Interferometer Space Antenna (LISA).
Peng Peng, Xian Chen
doaj   +1 more source

Gravitational Waves from Merging Intermediate‐Mass Black Holes [PDF]

open access: yesThe Astrophysical Journal, 2004
The discovery of an intermediate-mass black hole (IMBH) supports a runaway path of supermassive black hole (SMBH) formation in galactic nuclei. No concrete model to explain all the steps of this bottom-up scenario for SMBHs is yet known, but here we propose to use gravitational radiation to probe the merging history of IMBHs.
Tatsushi Matsubayashi   +2 more
openaire   +1 more source

Intermediate-mass black holes and the Fundamental Plane of black hole accretion

open access: yesMonthly Notices of the Royal Astronomical Society, 2022
ABSTRACT We present new 5 GHz Very Large Array observations of a sample of eight active intermediate-mass black holes with masses 104.9 M⊙ < M < 106.1 M⊙ found in galaxies with stellar masses M* < 3 × 109 M⊙. We detected five of the eight sources at high significance.
Kayhan Gültekin   +9 more
openaire   +2 more sources

Intermediate-mass black holes as LISA sources [PDF]

open access: yesClassical and Quantum Gravity, 2009
Accepted by CQG, LISA 7 Special ...
openaire   +2 more sources

INTERMEDIATE-MASS BLACK HOLES IN EARLY GLOBULAR CLUSTERS [PDF]

open access: yesThe Astrophysical Journal, 2010
4 pages, 1 figure, Accepted for publication in The Astrophysical Journal ...
Vesperini, Enrico   +3 more
openaire   +2 more sources

Gravitational Radiation from Intermediate‐Mass Black Holes [PDF]

open access: yesThe Astrophysical Journal, 2002
Recent X-ray observations of galaxies with ROSAT, ASCA, and Chandra have revealed numerous bright off-center point sources which, if isotropic emitters, are likely to be intermediate-mass black holes, with hundreds to thousands of solar masses. The origin of these objects is under debate, but observations suggest that a significant number of them ...
openaire   +2 more sources

Which Globular Clusters Contain Intermediate‐Mass Black Holes? [PDF]

open access: yesThe Astrophysical Journal, 2005
13 pages, 3 figures, Accepted ofr publication in ApJ (scheduled for February 2005)
Baumgardt, Holger   +2 more
openaire   +3 more sources

Simulating the growth of intermediate-mass black holes [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
Accepted for publication in ...
Pacucci, Fabio, Ferrara, Andrea
openaire   +2 more sources

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