Results 1 to 10 of about 135,505 (333)

Simulating black hole white dwarf encounters [PDF]

open access: greenComputer Physics Communications, 2008
The existence of supermassive black holes lurking in the centers of galaxies and of stellar binary systems containing a black hole with a few solar masses has been established beyond reasonable doubt.
Stephan Rosswog   +3 more
core   +4 more sources

BLACK HOLES AT THE CENTERS OF NEARBY DWARF GALAXIES [PDF]

open access: bronzeThe Astronomical Journal, 2014
41 pages, 10 figures, accepted for publication in The Astronomical ...
Edward C. Moran   +4 more
openalex   +4 more sources

Cosmological physics with black holes (and possibly white dwarfs) [PDF]

open access: greenNew Astronomy Reviews, 2008
The notion that microparsec-scale black holes can be used to probe gigaparsec-scale physics may seem counterintuitive, at first. Yet, the gravitational observatory LISA will detect cosmologically-distant coalescing pairs of massive black holes, accurately measure their luminosity distance and help identify an electromagnetic counterpart or a host ...
Kristen Menou   +2 more
openalex   +4 more sources

Transmuted gravity wave signals from primordial black holes

open access: yesPhysics Letters B, 2018
Primordial black holes (PBHs) interacting with stars in binaries lead to a new class of gravity wave signatures that we explore. A small 10−16–10−7M⊙ PBH captured by a neutron star or a white dwarf will eventually consume the host.
Volodymyr Takhistov
doaj   +4 more sources

Interpretations for Low‐ and High‐Frequency QPO Correlations of X‐Ray Sources among White Dwarfs, Neutron Stars, and Black Holes [PDF]

open access: green, 2007
It is found that there exists an empirical linear relation between the high frequency $\nhigh$ and low frequency $\nlow$ of quasi-periodic oscillations (QPOs) for black hole candidate (BHC), neutron star (NS) and white dwarf (WD) in the binary systems ...
Chengmin Zhang, H. X. Yin, Yongheng Zhao
openalex   +4 more sources

Tidal disruption of white dwarfs by intermediate mass black holes [PDF]

open access: diamondEPJ Web of Conferences, 2012
Modeling ultra-close encounters between a white dwarf and a spinning, intermediate mass black hole requires a full general relativistic treatment of gravity. This paper summarizes results from such a study.
Bode T.   +3 more
doaj   +2 more sources

An Accreting Supermassive Black Hole Buried in a Faint Dwarf Galaxy

open access: yesThe Astrophysical Journal Letters
In the last decade, there have been several discoveries of active galactic nuclei (AGN) in dwarf galaxies including an AGN in an ultracompact dwarf galaxy with a black hole mass >10 ^6 M _⊙ .
Abhishek Paswan, Mousumi Das, K Rubinur
doaj   +3 more sources

Molecular characteristics of segment 5, a unique fragment encoding two partially overlapping ORFs in the genome of rice black-streaked dwarf virus.

open access: goldPLoS ONE, 2019
Rice black-streaked dwarf virus (RBSDV), a ds-RNA virus in Fijivirus genus with family Reoviridae, which is transmitted by the small brown planthopper, is responsible for incidence of maize rough dwarf disease (MRDD) and rice black-streaked dwarf disease
Hongyue Zu   +8 more
doaj   +3 more sources

The Active Fraction of Massive Black Holes in Dwarf Galaxies [PDF]

open access: yesThe Astrophysical Journal, 2021
Abstract The population of massive black holes (MBHs) in dwarf galaxies is elusive, but fundamentally important to understand the coevolution of black holes with their hosts and the formation of the first collapsed objects in the universe.
Fabio Pacucci, Mar Mezcua, John A. Regan
openaire   +6 more sources

Modelling quantum aspects of disruption of a white dwarf star by a black hole

open access: yesScientific Reports, 2021
We study the final stages of the evolution of a binary system consisted of a black hole and a white dwarf star. We implement the quantum hydrodynamic equations and carry out numerical simulations.
Tomasz Karpiuk   +3 more
doaj   +1 more source

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