Results 131 to 140 of about 1,187,641 (234)

Polarized equatorial emission and hot spots around black holes with a dark matter halo

open access: yesEuropean Physical Journal C: Particles and Fields
We study linear polarization of the accretion disks around black holes with a dark matter halo. The interaction of the black hole with the dark matter is modeled by considering an exact solution to the Einstein equations which describe a superposition of
Tsanimir Angelov   +4 more
doaj   +1 more source

Disentangling the potential dark matter origin of LIGO's black holes

open access: yes, 2017
The nature of dark matter remains one of the biggest open questions in physics. Intriguingly, it has been suggested that dark matter may be explained by another recently observed phenomenon: the detection of gravitational waves by LIGO.
Hanna, Chad, Magee, Ryan
core   +1 more source

Distribution of Dark Matter in Galaxies, In Search of the Dark Matter Particle

open access: yesIOSR Journal of Applied Physics, 2014
A new theory called, the Dark Matter Flow Theory based on fluid mechanics concepts, has been given for the first time to derive the density of the dark matter and its distribution inside galaxies and beyond. Although the results are chocking, however they exhibit a high congruence with the measured observations of the velocity rotation curves of ...
openaire   +1 more source

Determination of dark matter distribution in Ursa Major III and constraints on dark matter annihilation*

open access: yesChinese Physics C
Abstract The recently discovered satellite dwarf galaxy Ursa Major III provides a promising opportunity to explore the signatures resulting from dark matter (DM) annihilation owing to its proximity and large J-factor. Given the absence of an excess of γ-ray signatures originating from Ursa Major III, observations of γ-rays, such as those
Zhao, Yi   +3 more
openaire   +2 more sources

The Distribution of Dark Matter in Spirals [PDF]

open access: yesEAS Publications Series, 2006
In the past years a wealth of observations allowed to unravel the structural properties of the Dark Matter Halos around spirals. First, their rotation curves follow an Universal profile (URC) that can be described in terms of an exponential thin stellar disk and a dark halo with a constant density core, whose relative importance increases with galaxy ...
openaire   +3 more sources

The Impact of Dark Matter on Gravitational Wave Detection by Space-Based Interferometers

open access: yesUniverse
The existence of dark matter is supported by multiple astrophysical observations, yet its particle nature remains unknown. The development of gravitational wave astronomy, especially with future space-based detectors such as LISA, provides new ...
Yuezhe Chen   +4 more
doaj   +1 more source

Phase--space Distribution of Volatile Dark Matter

open access: yes, 1995
14 pages, latex. Figures in a separated uuencoded, compressed, tarred PostScript file.
Ghizzardi, S., Bonometto, S. A.
openaire   +2 more sources

Microgalaxies in LCDM

open access: yesThe Astrophysical Journal
A fundamental prediction of the Lambda cold dark matter cosmology is the centrally divergent cuspy density profile of dark matter haloes. Density cusps render cold dark matter haloes resilient to tides, and protect dwarf galaxies embedded in them from ...
Raphaël Errani   +4 more
doaj   +1 more source

Investigating the Dark Matter Distribution with NGST

open access: yes, 1998
To appear in ESA conference Proceedings of the "Workshop on the Next Generation of Space Telescope: Science Drivers & Technical Challenges" Liege, Belgium June 15-18 ...
Schneider, Peter, Kneib, Jean-Paul
openaire   +2 more sources

Stationar spherical-symmetric configuration of dark matter

open access: yesPhysical Sciences and Technology, 2020
The article is devoted to the consideration of a model problem, where mass flow of dark matter which take as only gravitational interacting spherical continuous medium without pressure and with radial opposite motion with equilibrium ascending and ...
M. Abishev   +4 more
doaj  

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