Results 31 to 40 of about 678,119 (336)
Gravitational Lensing as a Probe of Cold Dark Matter Subhalos
Advances 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
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Axions as hot and cold dark matter [PDF]
Journal of Cosmology and Astroparticle Physics, 2014 The presence of a hot dark matter component has been hinted at 3 sigma by a combination of the results from different cosmological observations. We examine a possibility that pseudo Nambu-Goldstone bosons account for both hot and cold dark matter components.
Jeong, Kwang Sik +2 more
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Phenomenology of Dark Matter via a Bimetric Extension of General Relativity [PDF]
, 2015 We propose a relativistic model of dark matter reproducing at once the concordance cosmological model $\Lambda$-Cold-Dark-Matter ($\Lambda$-CDM) at cosmological scales, and the phenomenology of the modified Newtonian dynamics (MOND) at galactic scales ...
Bernard, Laura, Blanchet, Luc
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A new recipe for $$\Lambda $$ Λ CDM
European Physical Journal C: Particles and Fields, 2017 It is well known that a canonical scalar field is able to describe either dark matter or dark energy but not both. We demonstrate that a non-canonical scalar field can describe both dark matter and dark energy within a unified setting.
Varun Sahni, Anjan A. Sen
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Assessment of Dark Matter Models Using Dark Matter Correlations across Dwarf Spheroidal Galaxies
Universe, 2022 The predicted size of dark matter substructures in kilo-parsec scales is model-dependent. Therefore, if the correlations between dark matter mass densities as a function of the distances between them are measured via observations, we can scrutinize dark ...
Ahmad Borzou
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Axino cold dark matter revisited [PDF]
Journal of High Energy Physics, 2012 Abstract Axino arises in supersymmetric versions of axion models and is a natural candidate for cold or warm dark matter. Here we revisit axino dark matter produced thermally and non-thermally in light of recent developments. First we discuss the definition of axino relative to low energy axion one for several KSVZ and DFSZ models ...
Choi, Ki-Young +3 more
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DUNE Prospect for Leptophobic Dark Matter
Advances in High Energy Physics, 2020 Highly energetic proton/electron beam fixed-target experiments extend an opportunity to probe the sub-GeV dark matter and associated interactions. In this work, we have explored the sensitivity of DUNE (Deep Underground Neutrino Experiment) for sub-GeV ...
Sabeeha Naaz, Jyotsna Singh, R. B. Singh
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To Observe, or Not to Observe, Quantum-Coherent Dark Matter in the Milky Way, That is a Question
Frontiers in Astronomy and Space Sciences, 2021 In recent years, Bose-Einstein-condensed dark matter (BEC-DM) has become a popular alternative to standard, collisionless cold dark matter (CDM). This BEC-DM -also called scalar field dark matter (SFDM)- can suppress structure formation and thereby ...
Tanja Rindler-Daller
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, 2008 Caustics are a generic feature of the nonlinear growth of structure in the dark matter distribution. If the dark matter were absolutely cold, its mass density would diverge at caustics, and the integrated annihilation probability would also diverge for ...
Alard +23 more
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Constraints on anharmonic corrections of fuzzy dark matter
Journal of High Energy Physics, 2018 The cold dark matter (CDM) scenario has proved successful in cosmology. However, we lack a fundamental understanding of its microscopic nature. Moreover, the apparent disagreement between CDM predictions and subgalactic-structure observations has ...
J. A. R. Cembranos +3 more
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