Results 1 to 10 of about 7,204,887 (298)

A superfluid dark matter cosmic string wake

open access: yesEuropean Physical Journal C: Particles and Fields
We study the effects of superfluid dark matter on the structure of a cosmic string wake, considering both the effects of regular and quantum pressure terms. We consider the total fluid to consist of a combination of baryons and dark matter. Hence, we are
Aline Favero, Robert Brandenberger
doaj   +1 more source

Emergent dark matter in late time universe on holographic screen

open access: yesJournal of High Energy Physics, 2018
We discuss a scenario that the dark matter in late time universe emerges as part of the holographic stress-energy tensor on the hypersurface in higher dimensional flat spacetime.
Rong-Gen Cai, Sichun Sun, Yun-Long Zhang
doaj   +1 more source

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

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

Dark Matter Distribution in Milky Way analog Galaxies

open access: yesThe Astrophysical Journal
Our current understanding of how dark matter (DM) is distributed within the Milky Way (MW) halo, particularly in the solar neighborhood, is based on either careful studies of the local stellar orbits, model assumptions on the global shape of the MW halo,
Natanael G. de Isídio   +11 more
doaj   +1 more source

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

Extended universal rotational curve of spiral galaxies

open access: yesDiscover Space
In this work, we aim to advance the Universal Rotation Curve (URC) paradigm by leveraging new data and extending its observational domain. Building on previous studies that established the URC using optical rotation curves reaching the galaxy optical ...
Esha Bhatia   +3 more
doaj   +1 more source

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  

ELG×LRG Distribution through Dark Matter Halo Dynamics

open access: yesThe Astrophysical Journal
We investigate the clustering and halo occupation distribution (HOD) of DESI Y1 emission-line (ELGs) and luminous red (LRGs) galaxies at 0.8 
Ginevra Favole   +5 more
doaj   +1 more source

DAMPS: DArk Matter Profile Around Massive Schwarzschild Black Holes

open access: yesUniverse
Dark matter constitutes the predominant component of the universe, yet its fundamental nature remains elusive, motivating diverse physical and astrophysical investigations.
Hai-Chao Yuan, Zi-Chang Zhang, Yong Tang
doaj   +1 more source

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