Results 11 to 20 of about 163,915 (293)
The Nature of the IMBH Candidate CXO J133815.6+043255: High-frequency Radio Emission
The Astrophysical Journal, 2023 The ultraluminous X-ray source CXO J133815.6+043255 is a strong candidate for a bona fide intermediate-mass black hole residing in the outskirts of NGC 5252.
Krista Lynne Smith +2 more
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Hypervelocity Stars from a Supermassive Black Hole–Intermediate-mass Black Hole Binary [PDF]
The Astrophysical Journal, 2019 Abstract In this paper we consider a scenario in which the currently observed hypervelocity stars in our Galaxy have been ejected from the Galactic center as a result of dynamical interactions with an intermediate-mass black hole (IMBH) orbiting the central supermassive black hole (SMBH).
Alexander Rasskazov +6 more
openaire +3 more sources
The Astrophysical Journal, 2023 We investigate the thermal condensation caused by a massive object that passes through the interstellar medium with high velocity, and propose a mechanism for creating a filamentary gaseous object, or interstellar contrail.
Kanta Kitajima, Shu-ichiro Inutsuka
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Demographics of Hierarchical Black Hole Mergers in Dense Star Clusters
The 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
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Constraints on relic magnetic black holes
Journal 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
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Fast Spinning Pulsars as Probes of Massive Black Holes' Gravity [PDF]
, 2014 Dwarf galaxies and globular clusters may contain intermediate mass black holes ($10^{3}$ to $10^{5}$ solar masses) in their cores. Estimates of ~$10^{3}$ neutron stars in the central parsec of the Galaxy and similar numbers in small elliptical galaxies ...
Sarty, Gordon E. +2 more
core +2 more sources
Gravitational Waves from Merging Intermediate‐Mass Black Holes [PDF]
The 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
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Intermediate-mass black holes and the Fundamental Plane of black hole accretion
Monthly 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
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Synchronizing the EMRIs and IMRIs in AGN Accretion Disks
The 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
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Intermediate-mass black holes as LISA sources [PDF]
Classical and Quantum Gravity, 2009 Accepted by CQG, LISA 7 Special ...
openaire +2 more sources