Results 1 to 10 of about 60,419 (262)

Gravitational Lensing as a Probe of Cold Dark Matter Subhalos [PDF]

open access: yesAdvances in Astronomy, 2010
In the cold dark matter scenario, dark matter halos are assembled hierarchically from smaller subunits. Some of these subunits are disrupted during the merging process, whereas others survive temporarily in the form of subhalos.
Erik Zackrisson, Teresa Riehm
doaj   +2 more sources

Resolving XENON excess with decaying cold dark matter

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We propose a decaying cold dark matter model to explain the excess of electron recoil observed at the XENON1T experiment. In this scenario, the daughter dark matter from the parent dark matter decay easily obtains velocity large enough to saturate the ...
Shuai Xu, Sibo Zheng
doaj   +2 more sources

Cold dark matter: Controversies on small scales [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2015
David H Weinberg   +2 more
exaly   +2 more sources

The Cusp–Core Problem in Gas-Poor Dwarf Spheroidal Galaxies

open access: yesGalaxies, 2021
This review deals with the inconsistency of inner dark matter density profiles in dwarf galaxies, known as the cusp–core problem. In particular, we aim to focus on gas-poor dwarf galaxies.
Pierre Boldrini
doaj   +1 more source

Dark Matters on the Scale of Galaxies

open access: yesUniverse, 2020
The cold dark-matter model successfully explains both the emergence and evolution of cosmic structures on large scales and, when we include a cosmological constant, the properties of the homogeneous and isotropic Universe.
Ivan de Martino   +5 more
doaj   +1 more source

Making (dark matter) waves: Untangling wave interference for multi-streaming dark matter

open access: yesThe Open Journal of Astrophysics, 2022
The classical dynamics of collisionless cold dark matter, commonly described by fluid variables or a phase-space distribution, can be captured in a single semiclassical wavefunction.
Alex Gough, Cora Uhlemann
doaj   +1 more source

Radial Oscillations of Quark Stars Admixed with Dark Matter

open access: yesUniverse, 2022
We investigated compact stars consisting of cold quark matter and fermionic dark matter treated as two admixed fluids. We computed the stellar structures and fundamental radial oscillation frequencies of different masses of the dark fermion in the cases ...
José C. Jiménez, Eduardo S. Fraga
doaj   +1 more source

Light cold dark matter from non-thermal decay

open access: yesPhysics Letters B, 2023
We investigate the mass range and the corresponding free-streaming length scale of dark matter produced non-thermally from decay of heavy objects which can be either dominant or sub-dominant at the moment of decay.
Ki-Young Choi   +4 more
doaj   +1 more source

Brief History of Ultra-light Scalar Dark Matter Models

open access: yesEPJ Web of Conferences, 2018
This is a review on the brief history of the scalar field dark matter model also known as fuzzy dark matter, BEC dark matter, wave dark matter, or ultra-light axion. In this model ultra-light scalar dark matter particles with mass m = O(10-22)eV condense
Lee Jae-Weon
doaj   +1 more source

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