Showing 261 - 271 results of 271 for search '"cold dark matter"', query time: 0.10s Refine Results
  1. 261

    A Large Population of Faint 8 < z < 16 Galaxies Found in the First JWST NIRCam Observations of the NGDEEP Survey by Duncan Austin, Nathan Adams, Christopher J. Conselice, Thomas Harvey, Katherine Ormerod, James Trussler, Qiong Li, Leonardo Ferreira, Pratika Dayal, Ignas Juodžbalis

    Published 2023-01-01
    “…We also compare our results to theory, finding no significant disagreement with a few cold-dark-matter-based models. The discovery of these objects demonstrates the critical need for deeper, or similar depth but wider-area, JWST surveys to explore the early universe.…”
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    Article
  2. 262

    CLASH-VLT: The Inner Slope of the MACS J1206.2-0847 Dark Matter Density Profile by Andrea Biviano, Lorenzo Pizzuti, Amata Mercurio, Barbara Sartoris, Piero Rosati, Stefano Ettori, Marisa Girardi, Claudio Grillo, Gabriel B. Caminha, Mario Nonino

    Published 2023-01-01
    “…We find ${\gamma }_{\mathrm{DM}}={0.7}_{-0.1}^{+0.2}$ (68% confidence levels), consistent with predictions from recent Lambda cold dark matter cosmological numerical simulations.…”
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    Article
  3. 263

    Theoretically Motivated Dark Electromagnetism as the Origin of Relativistic Modified Newtonian Dynamics by Felix Finster, José M. Isidro, Claudio F. Paganini, Tejinder P. Singh

    Published 2024-03-01
    “…We conclude that dark electromagnetism effectively mimics cold dark matter, and the two are essentially indistinguishable in cosmological situations where CDM successfully explains observations, such as CMB anisotropies and gravitational lensing.…”
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    Article
  4. 264

    Symphony: Cosmological Zoom-in Simulation Suites over Four Decades of Host Halo Mass by Ethan O. Nadler, Philip Mansfield, Yunchong Wang, Xiaolong Du, Susmita Adhikari, Arka Banerjee, Andrew Benson, Elise Darragh-Ford, Yao-Yuan Mao, Sebastian Wagner-Carena, Risa H. Wechsler, Hao-Yi Wu

    Published 2023-01-01
    “…We present Symphony, a compilation of 262 cosmological, cold-dark-matter-only zoom-in simulations spanning four decades of host halo mass, from 10 ^11 –10 ^15 M _⊙ . …”
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    Article
  5. 265

    Parametrization of Deceleration Parameter in <b><i>f</i></b>(<b><i>Q</i></b>) Gravity by Gaurav N. Gadbail, Sanjay Mandal, Pradyumn Kumar Sahoo

    Published 2022-12-01
    “…Employing the Bayesian analysis for the Observational Hubble data (OHD), we estimated the constraints on the associated free parameters <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>(</mo><msub><mi>H</mi><mn>0</mn></msub><mo>,</mo><msub><mi>q</mi><mn>0</mn></msub><mo>,</mo><msub><mi>q</mi><mn>1</mn></msub><mo>)</mo></mrow></semantics></math></inline-formula> with <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>H</mi><mn>0</mn></msub></semantics></math></inline-formula> the current Hubble parameter to determine if this model may challenge the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="normal">Λ</mi></semantics></math></inline-formula>CDM (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="normal">Λ</mi></semantics></math></inline-formula> cold dark matter with the cosmological constant, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="normal">Λ</mi></semantics></math></inline-formula>) limitations. …”
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  6. 266

    Quintessence Behavior of an Anisotropic Bulk Viscous Cosmological Model in Modified <i>f</i>(<i>Q</i>)-Gravity by Anirudh Pradhan, Archana Dixit, Dinesh Chandra Maurya

    Published 2022-12-01
    “…It tends to the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mo>Λ</mo></semantics></math></inline-formula> cold dark matter (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mo>Λ</mo></semantics></math></inline-formula>CDM) value (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>ω</mi><mi>v</mi></msub><mo>=</mo><mo>−</mo><mn>1</mn></mrow></semantics></math></inline-formula>) at late times. …”
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  7. 267

    COSMOS2020: Identification of High-z Protocluster Candidates in COSMOS by Malte Brinch, Thomas R. Greve, John R. Weaver, Gabriel Brammer, Olivier Ilbert, Marko Shuntov, Shuowen Jin, Daizhong Liu, Clara Giménez-Arteaga, Caitlin M. Casey, Iary Davidson, Seiji Fujimoto, Anton M. Koekemoer, Vasily Kokorev, Georgios Magdis, H. J. McCracken, Conor J. R. McPartland, Bahram Mobasher, David B. Sanders, Sune Toft, Francesco Valentino, Giovanni Zamorani, Jorge Zavala, The COSMOS Team

    Published 2023-01-01
    “…The number and the masses of the halos associated with our protocluster candidates are consistent with what is expected from the area of a COSMOS-like survey in a standard Λ cold dark matter cosmology. Through comparison with simulation, we expect that all of the overdensities at z ≃ 6 will evolve into Virgo-/Coma-like clusters at present (i.e., with masses ∼10 ^14 –10 ^15 M _⊙ ). …”
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  8. 268

    Astroparticle Constraints from the Cosmic Star Formation Rate Density at High Redshift: Current Status and Forecasts for JWST by Giovanni Gandolfi, Andrea Lapi, Tommaso Ronconi, Luigi Danese

    Published 2022-11-01
    “…We exploit the recent determination of the cosmic star formation rate (SFR) density at high redshifts <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>z</mi><mo>≳</mo><mn>4</mn></mrow></semantics></math></inline-formula> to derive astroparticle constraints on three common dark matter (DM) scenarios alternative to standard cold dark matter (CDM): warm dark matter (WDM), fuzzy dark matter (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>ψ</mi></semantics></math></inline-formula>DM) and self-interacting dark matter (SIDM). …”
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  9. 269
  10. 270

    CLASS Data Pipeline and Maps for 40 GHz Observations through 2022 by Yunyang Li, Joseph R. Eimer, Keisuke Osumi, John W. Appel, Michael K. Brewer, Aamir Ali, Charles L. Bennett, Sarah Marie Bruno, Ricardo Bustos, David T. Chuss, Joseph Cleary, Jullianna Denes Couto, Sumit Dahal, Rahul Datta, Kevin L. Denis, Rolando Dünner, Francisco Espinoza, Thomas Essinger-Hileman, Pedro Fluxá Rojas, Kathleen Harrington, Jeffrey Iuliano, John Karakla, Tobias A. Marriage, Nathan J. Miller, Sasha Novack, Carolina Núñez, Matthew A. Petroff, Rodrigo A. Reeves, Karwan Rostem, Rui Shi, Deniz A. N. Valle, Duncan J. Watts, Janet L. Weiland, Edward J. Wollack, Zhilei Xu, Lingzhen Zeng, CLASS Collaboration

    Published 2023-01-01
    “…Finally, we present simulations of the level at which expected sources of systematic error bias the measurements, finding subpercent bias for the Λ cold dark matter EE power spectra. Bias from E -to- B leakage due to the data reduction pipeline and polarization angle uncertainty approaches the expected level for an r = 0.01 BB power spectrum. …”
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  11. 271

    Asymmetric dark matter and the sun. by Frandsen, M, Sarkar, S

    Published 2010
    “…Cold dark matter particles with an intrinsic matter-antimatter asymmetry do not annihilate after gravitational capture by the Sun and can affect its interior structure. …”
    Journal article