Results 21 to 30 of about 237,520 (386)
First gravitational-wave search for intermediate-mass black hole mergers with higher-order harmonics [PDF]
Physical Review D, 2022 Current matched-filter searches for gravitational waves from binary black-hole mergers compare the calibrated detector data to waveform templates that omit the higher-order mode content of the signals predicted by General Relativity.
K. Chandra +3 more
semanticscholar +1 more source
Intermediate-Mass Black Holes [PDF]
Annual Review of Astronomy and Astrophysics, 2020 We describe ongoing searches for intermediate-mass black holes with MBH≈ 10–105M⊙. We review a range of search mechanisms, both dynamical and those that rely on accretion signatures. We find the following conclusions: ▪ Dynamical and accretion signatures alike point to a high fraction of 109–1010M⊙galaxies hosting black holes with MBH∼ 105M⊙.
Jenny E. Greene, Luis C. Ho, Jay Strader
openaire +4 more sources
Inferring the Intermediate-mass Black Hole Number Density from Gravitational-wave Lensing Statistics [PDF]
Astrophysical Journal Letters, 2022 The population properties of intermediate-mass black holes remain largely unknown, and understanding their distribution could provide a missing link in the formation of supermassive black holes and galaxies.
J. Gais +4 more
semanticscholar +1 more source
An Ultraluminous Supersoft Source in a Dwarf Galaxy of A85: An Intermediate-mass Black Hole Candidate [PDF]
Astrophysical Journal, 2022 We study a large sample of dwarf galaxies using archival Chandra X-ray observations, with the aim of detecting accreting intermediate-mass black holes (IMBHs).
Marko Mićić, J. Irwin, D. Lin
semanticscholar +1 more source
Tracing intermediate-mass black holes in the Galactic Centre [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 AbstractWe have developed a new method for post-Newtonian, high-precision integration of stellar systems containing a super-massive black hole (SMBH), splitting the forces on a particle between a dominant central force and perturbations. We used this method to perform fully collisional N-body simulations of inspiralling intermediate-mass black holes ...
U. Löckmann, Holger Baumgardt
openalex +8 more sources
Mass, Spin, and Ultralight Boson Constraints from the Intermediate-mass Black Hole in the Tidal Disruption Event 3XMM J215022.4–055108 [PDF]
Astrophysical Journal, 2021 We simultaneously and successfully fit the multiepoch X-ray spectra of the tidal disruption event (TDE) 3XMM J215022.4−055108 using a modified version of our relativistic slim disk model that now accounts for angular momentum losses from radiation.
Sixiang Wen +3 more
semanticscholar +1 more source
Intermediate mass black hole seeds from cosmic string loops [PDF]
Physical Review D, 2021 We demonstrate that cosmic string loops may provide a joint resolution of two mysteries surrounding recently observed black holes. For a string tension in an appropriate range, large radius string loops have the potential to provide the nonlinearities in
R. Brandenberger, Bryce Cyr, Hao Jiao
semanticscholar +1 more source
Variability-selected Intermediate-mass Black Hole Candidates in Dwarf Galaxies from ZTF and WISE [PDF]
Astrophysical Journal, 2021 While it is difficult to observe the first black hole seeds in the early universe, we can study intermediate-mass black holes (IMBHs) in local dwarf galaxies for clues about their origins.
C. Ward +11 more
semanticscholar +1 more source
INTERMEDIATE-MASS BLACK HOLES [PDF]
International Journal of Modern Physics D, 2004 The mathematical simplicity of black holes, combined with their links to some of the most energetic events in the universe, means that black holes are key objects for fundamental physics and astrophysics. Until recently, it was generally believed that black holes in nature appear in two broad mass ranges: stellar-mass (M~3–20 M⊙), which are produced ...
Edward Colbert, M. Coleman Miller
openaire +3 more sources
Partial Tidal Disruptions of Main-sequence Stars by Intermediate-mass Black Holes
The Astrophysical Journal, 2023 We study close encounters of a 1 M _⊙ middle-age main-sequence star (modeled using MESA) with massive black holes through hydrodynamic simulations, and explore in particular the dependence of the outcomes on the black hole mass.
Fulya Kıroğlu +5 more
doaj +1 more source