Showing 61 - 80 results of 271 for search '"cold dark matter"', query time: 0.07s Refine Results
  1. 61

    GW200105 and GW200115 are compatible with a scenario of primordial black hole binary coalescences by Sai Wang, Zhi-Chao Zhao

    Published 2022-01-01
    “…The merger rate predicted by such a scenario could be consistent with the one estimated from LIGO and Virgo, even if primordial black holes constitute a fraction of cold dark matter. The required abundance of primordial black holes is compatible with the existing upper limits from microlensing, caustic crossing and cosmic microwave background observations.…”
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  2. 62

    The scatter, residual correlations and curvature of the sparc baryonic Tully–Fisher relation by Desmond, H

    Published 2017
    “…In recentwork, Lelli et al. argue that the tightness of the baryonic Tully–Fisher relation (BTFR) of the SPARC galaxy sample, and the weakness of the correlation of its residuals with effective radius, pose challenges to Λ cold dark matter cosmology. In this Letter, we calculate the statistical significance of these results in the framework of halo abundance matching, which imposes a canonical galaxy–halo connection. …”
    Journal article
  3. 63

    A measurement of Omega from the North American test flight of BOOMERANG by Melchiorri, A, Ade, P, Bernardis, P, Bock, J, Borrill, J, Boscaleri, A, Crill, B, Troia, G, Farese, P, Ferreira, P, Ganga, K, Gasperis, G, Giacometti, M, Hristov, V, Jaffe, A, Lange, A, Masi, S, Mauskopf, P, Miglio, L, Netterfield, C, Pascale, E, Piacentini, F, Romeo, G, Ruhl, J, Vittorio, N

    Published 1999
    “…Within the class of Cold Dark Matter models, we find that the overall fractional energy density of the universe, Omega, is constrained to be 0.85 < Omega < 1.25 at the 68% confidence level. …”
    Journal article
  4. 64

    Quasars: Standard Candles up to z = 7.5 with the Precision of Supernovae Ia by M. G. Dainotti, G. Bargiacchi, A. Ł. Lenart, S. Nagataki, S. Capozziello

    Published 2023-01-01
    “…Currently, the Λ cold dark matter model, which relies on the existence of cold dark matter and a cosmological constant Λ, best describes the universe. …”
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  5. 65

    Gravitational lensing and the power spectrum of dark matter substructure: Insights from the ETHOS by Díaz Rivero, Ana, Dvorkin, Cora, Cyr-Racine, Francis-Yan, Zavala, Jesús, Vogelsberger, Mark

    Published 2018
    “…We use two different N-body simulations from the ETHOS framework: one with cold dark matter and another with self-interacting dark matter and a cutoff in the initial power spectrum. …”
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  6. 66

    ΛCDM and the principle of equivalence by Melia Fulvio

    Published 2023-12-01
    “…This equation-of-state produces zero acceleration, and significantly mitigates the growing tension between lambda cold dark matter (Λ\Lambda CDM) and the ever-improving observations. …”
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  7. 67

    Higher topological charge and the QCD vacuum by Fabian Rennecke

    Published 2020-09-01
    “…The production of cold dark matter through the vacuum realignment mechanism of axions can, therefore, be affected by higher topological charge effects. …”
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  8. 68

    Testing universal dark-matter caustic rings with galactic rotation curves by Daniil Davydov, Sergey Troitsky

    Published 2023-04-01
    “…Infall of cold dark matter on a galaxy may result in caustic rings where the particle density is enhanced. …”
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  9. 69

    LENSING PROPERTIES OF THE EINASTO PROFILE IN TERMS OF THE MEIJER G FUNCTION by Edwin Retana-Montenegro, Francisco Frutos-Alfaro

    Published 2014-07-01
    “…In N-body simulations of cold dark matter, it has been found that three-parameter models, particularly the Einasto profile, yield better fits to a wide range of dark matter haloes than two parameter models like the Navarro-Frenk-White profile. …”
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  10. 70

    Prediction of the Expansion of the Universe Made by Alexander Friedmann and the Effect of Particle Creation in Cosmology by Vladimir M. Mostepanenko

    Published 2024-02-01
    “…The numbers of scalar and spinor particles created at different stages of the Universe’s evolution are presented, and the possible role of the effect of the creation of particles in the formation of relativistic plasma and cold dark matter after the inflationary period is noted. …”
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  11. 71

    Dark matter candidate from torsion by Álvaro de la Cruz Dombriz, Francisco José Maldonado Torralba, David F. Mota

    Published 2022-11-01
    “…We find the parameter space of the theory which can account for all the predicted cold dark matter, and constrain such parameters with astrophysical observations.…”
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  12. 72

    Barrow-type structure and thermodynamics of black holes by Athanasios Petridis, Asmaa G. Shalaby

    Published 2023-01-01
    “…This effect makes relatively small primordial black holes to survive long enough so as to be potential ingredients of cold dark matter. The concept of Barrow-type structure can be generalized to the entire space resulting in a modified space-time metric.…”
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  13. 73

    Can a variation of fine structure constant influence the fate of gravitational collapse? by Soumya Chakrabarti

    Published 2023-08-01
    “…We study a spherical distribution of cold dark matter coexisting with other fluid elements, collapsing under its own gravity. …”
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  14. 74

    Self-Interacting Dark Matter Subhalos in the Milky Way’s Tides by Sameie, Omid, Yu, Hai-Bo, Sales, Laura V, Vogelsberger, Mark, Zavala, Jesús

    Published 2021
    “…The interaction between the subhalos and the Milky Way's tides lead to more diverse dark matter distributions in the inner region, compared to their cold dark matter counterparts. We test this scenario with two Milky Way satellite galaxies, Draco and Fornax, opposite extremes in the inner dark matter content, and find that they can be accommodated within the self-interacting dark matter model proposed to explain the diverse rotation curves of spiral galaxies in the field.…”
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  15. 75

    Successful Supersymmetric Inflation by Ross, G, Sarkar, S

    Published 1995
    “…Such consistency requires that the generation of gravitational waves be negligible and that the spectrum of scalar density perturbations depart significantly from scale-invariance, thus improving the fit to large-scale structure in an universe dominated by cold dark matter. We also consider the problems associated with gravitino production through inflaton decay and with other weakly coupled fields such as the moduli encountered in (compactified) string theories.…”
    Journal article
  16. 76

    Detection of the power spectrum of cosmic microwave background lensing by the Atacama Cosmology Telescope. by Das, S, Sherwin, B, Aguirre, P, Appel, J, Bond, JR, Carvalho, C, Devlin, M, Dunkley, J, Dünner, R, Essinger-Hileman, T, Fowler, J, Hajian, A, Halpern, M, Hasselfield, M, Hincks, A, Hlozek, R, Huffenberger, K, Hughes, J, Irwin, K, Klein, J, Kosowsky, A, Lupton, R, Marriage, T, Marsden, D, Menanteau, F

    Published 2011
    “…The measured amplitude of the signal agrees with Lambda cold dark matter cosmology predictions. Since the amplitude of the convergence power spectrum scales as the square of the amplitude of the density fluctuations, the 4σ detection of the lensing signal measures the amplitude of density fluctuations to 12%.…”
    Journal article
  17. 77

    New upper limit on the total neutrino mass from the 2 degree field galaxy redshift survey. by Elgarøy, Ø, Lahav, O, Percival, W, Peacock, J, Madgwick, D, Bridle, S, Baugh, C, Baldry, I, Bland-Hawthorn, J, Bridges, T, Cannon, R, Cole, S, Colless, M, Collins, C, Couch, W, Dalton, G, De Propris, R, Driver, S, Efstathiou, G, Ellis, R, Frenk, C, Glazebrook, K, Jackson, C, Lewis, I, Lumsden, S

    Published 2002
    “…We constrain f(nu) identical with Omega(nu)/Omega(m), the fractional contribution of neutrinos to the total mass density in the Universe, by comparing the power spectrum of fluctuations derived from the 2 Degree Field Galaxy Redshift Survey with power spectra for models with four components: baryons, cold dark matter, massive neutrinos, and a cosmological constant. …”
    Journal article
  18. 78

    Dark Matter as Variations in the Electromagnetic Zero-Point Field Induced by Baryonic Matter by Yehonatan Knoll

    Published 2020-09-01
    “…Cold dark-matter, as a solution to the so-called dark-matter problem, suffers from a major internal conflict: In order to dodge direct detection for so long, it must have an unobservably small (non gravitational) interaction with mundane matter, and yet it manages to ‘conspire’ with it such that, in single galaxies, its distribution can be inferred from that of mundane matter via the MOND phenomenology. …”
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  19. 79

    Axion isocurvature collider by Shiyun Lu

    Published 2022-04-01
    “…In this paper, we study extremely light axions (including QCD axions and axion-like-particles), and consider them constituting cold dark matter (CDM) at late times. We are interested in inflationary isocurvature modes by such axions, and try to figure out how axion perturbations can behave as isocurvature colliders. …”
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  20. 80

    FLRW Cosmological Models with Dynamic Cosmological Term in Modified Gravity by Rishi Kumar Tiwari, Aroonkumar Beesham, Bhupendra Kumar Shukla

    Published 2021-08-01
    “…Although the standard lambda cold dark matter cosmological model is quite successful in describing the universe, there are still several issues that are still not resolved. …”
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