Results 61 to 70 of about 136,010 (238)
Counting Black Holes: The Cosmic Stellar Remnant Population and Implications for LIGO
, 2017 We present an empirical approach for interpreting gravitational wave signals of binary black hole mergers under the assumption that the underlying black hole population is sourced by remnants of stellar evolution.
Bullock, James S. +2 more
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Feedback by Massive Black Holes in Gas-rich Dwarf Galaxies [PDF]
The Astrophysical Journal Letters, 2017 Abstract Could there be intermediate-mass black holes in essentially all old dwarf galaxies? I argue that current observations of active galactic nuclei in dwarfs allow such a radical hypothesis that provides early feedback during the epoch of galaxy formation and potentially provides a unifying explanation for many, if not all, of the ...
openaire +4 more sources
Black Hole Growth and Feedback in Isolated ROMULUS25 Dwarf Galaxies [PDF]
The Astrophysical Journal, 2020 Abstract We investigate the effects of massive black hole growth on the structural evolution of dwarf galaxies within the Romulus25 cosmological hydrodynamical simulation. We study a sample of 205 central, isolated dwarf galaxies with stellar masses and a central BH.
Ray S. Sharma +7 more
openaire +4 more sources
Studying the Radiation of a White Dwarf Star Falling onto a Black Hole
The Astrophysical JournalWe investigate electromagnetic and gravitational radiation generated during the process of the tidal stripping of a white dwarf star circulating a black hole.
Marek Nikołajuk +3 more
doaj +1 more source
Exploring the Evolution of a Dwarf Spheroidal Galaxy with SPH Simulations. II. AGN Feedback
The Astrophysical JournalWe investigate active galactic nucleus (AGN) feedback from an intermediate-mass black hole at the center of a dwarf spheroidal galaxy, by performing isolated galaxy simulations using a modified version of the GADGET-3 code. We consider Leo II (PGC 34176)
Roberto Hazenfratz +3 more
doaj +1 more source
Active Galactic Nucleus Quenching in Simulated Dwarf Galaxies
The Astrophysical Journal, 2023 We examine the quenching characteristics of 328 isolated dwarf galaxies $\left({10}^{8}\lt {M}_{\mathrm{star}}/{M}_{\odot }\lt {10}^{10}\right)$ within the Romulus25 cosmological hydrodynamic simulation.
Ray S. Sharma +4 more
doaj +1 more source
Two-exon skipping within MLPH is associated with coat color dilution in rabbits. [PDF]
PLoS ONE, 2013 Coat color dilution turns black coat color to blue and red color to cream and is a characteristic in many mammalian species. Matings among Netherland Dwarf, Loh, and Lionhead Dwarf rabbits over two generations gave evidence for a monogenic autosomal ...
Stefanie Lehner +6 more
doaj +1 more source
The Contribution Of Outer HI Disks To The Merging Binary Black Hole Population
, 2017 We investigate the contribution of outer HI disks to the observable population of merging black hole binaries. Like dwarf galaxies, the outer HI disks of spirals have low star formation rates and lower metallicities than the inner disks of spirals. Since
Belczynski, Chris +7 more
core +1 more source
An Alternative Origin for Hypervelocity Stars
, 2008 Halo stars with unusually high radial velocity ("hypervelocity" stars, or HVS) are thought to be stars unbound to the Milky Way that originate from the gravitational interaction of stellar systems with the supermassive black hole at the Galactic center ...
Abadi +14 more
core +1 more source
On Companion-Induced Off-Center Supernova-Like Explosions [PDF]
, 2000 We suggest that a neutron star with a strong magnetic field, spiraling into the envelope of a companion star, can generate a ``companion induced SN-like off-center explosion".
Lee, Chang-Hwan, Lee, Hyun Kyu, Yi, Insu
core +2 more sources