Results 81 to 90 of about 1,346 (168)

Observability of Isolated Stellar-mass Black Holes

open access: yesThe Astrophysical Journal Letters
Stellar-mass black holes (BHs) represent the natural end states of massive stars. It is estimated that 10 ^8 stellar-mass BHs are present in the Milky Way galaxy, a significant fraction of which are expected to be isolated.
Lena Murchikova, Kailash C. Sahu
doaj   +1 more source

PRIMORDIAL BLACK HOLES, ASTROPHYSICAL SYSTEMS AND THE EDDINGTON–WEINBERG RELATION [PDF]

open access: green, 2011
Salvatore Capozziello   +2 more
openalex   +1 more source

Multispectral Sirens: Gravitational-wave Cosmology with (Multi-) Subpopulations of Binary Black Holes

open access: yesThe Astrophysical Journal
The cosmic expansion rate can be directly measured with gravitational-wave (GW) data of the compact binary mergers by jointly constraining the mass function of the population and the cosmological model via the so-called spectral sirens.
Yin-Jie Li   +3 more
doaj   +1 more source

Direct Formation of Massive Black Holes via Dynamical Collapse in Metal-enriched Merging Galaxies at z ∼ 10: Fully Cosmological Simulations

open access: yesThe Astrophysical Journal
We present the results of the first fully cosmological hydrodynamical simulations studying the merger-driven model for massive black hole (BH) seed formation via direct collapse.
Lucio Mayer   +3 more
doaj   +1 more source

Find the Gap: Black Hole Population Analysis with an Astrophysically Motivated Mass Function [PDF]

open access: bronze, 2021
Eric J. Baxter   +3 more
openalex   +1 more source

The Delayed Radio Emission in the Black Hole X-Ray Binary MAXI J1348-630

open access: yesThe Astrophysical Journal Letters
We explore the coupling between the accretion flow and the jet in black hole X-ray binary MAXI J1348-630 by analyzing the X-ray and radio observations during its 2019 outburst.
Bei You   +4 more
doaj   +1 more source

The most powerful astrophysical events: Gravitational-wave peak luminosity of binary black holes as predicted by numerical relativity [PDF]

open access: bronze, 2017
D. Keitel   +11 more
openalex   +1 more source

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