Results 11 to 20 of about 298,499 (308)

Testing general relativity in cosmology [PDF]

Living Reviews in Relativity, 2018
We review recent developments and results in testing general relativity (GR) at cosmological scales. The subject has witnessed rapid growth during the last two decades with the aim of addressing the question of cosmic acceleration and the dark energy ...
M. Ishak
semanticscholar   +3 more sources

Computational Cosmology: from the Early Universe to the Large Scale Structure

Living Reviews in Relativity, 2001
In order to account for the observable Universe, any comprehensive theory or model of cosmology must draw from many disciplines of physics, including gauge theories of strong and weak interactions, the hydrodynamics and microphysics of baryonic matter ...
Anninos Peter
doaj   +2 more sources

Computational Cosmology: from the Early Universe to the Large Scale Structure

Living Reviews in Relativity, 1998
In order to account for the observable Universe, any comprehensive theory or model of cosmology must draw from many disciplines of physics, including gauge theories of strong and weak interactions, the hydrodynamics and microphysics of baryonic matter ...
Peter Anninos
doaj   +2 more sources

Physical and Relativistic Numerical Cosmology

Living Reviews in Relativity, 1998
In order to account for the observable Universe, any comprehensive theory or model of cosmology must draw from many disciplines of physics, including gauge theories of strong and weak interactions, the hydrodynamics and microphysics of baryonic matter ...
Peter Anninos
doaj   +2 more sources

Probing the early Universe cosmology with NANOGrav: Possibilities and limitations [PDF]

Physical Review D, 2023
A stochastic gravitational wave background is a prediction of a number of astrophysical and cosmological phenomena including early Universe Cosmology. Recently, the NANOGrav Collaboration reported conclusive evidence for a stochastic gravitational-wave ...
I. Ben-Dayan, Utkarsh Kumar, Udaykrishna Thattarampilly, Amresh Verma   +3 more
semanticscholar   +1 more source

Chemical composition and ages of four globular clusters in M31 from the analysis of their integrated-light spectra

Open Astronomy, 2022
We compare the results on the chemical composition of four globular clusters (GCs) in M31 (Bol 6, Bol 20, Bol 45, and Bol 50) (Maricheva M. 2021. Study of integrated spectra of four globular clusters in M 31. Astrophys. Bull. 76:389–404. doi: https://doi.
Sharina Margarita Eugene, Maricheva Margarita Igorevna   +1 more
doaj   +1 more source

Bayesian evidence for both astrophysical and primordial black holes: mapping the GWTC-2 catalog to third-generation detectors [PDF]

Journal of Cosmology and Astroparticle Physics, 2021
We perform a hierarchical Bayesian analysis of the GWTC-2 catalog to investigate the mixed scenario in which the merger events are explained by black holes of both astrophysical and primordial origin.
V. De Luca, G. Franciolini, P. Pani, A. Riotto   +3 more
semanticscholar   +1 more source

KiDS-1000 cosmology: Cosmic shear constraints and comparison between two point statistics [PDF]

Astronomy & Astrophysics, 2020
We present cosmological constraints from a cosmic shear analysis of the fourth data release of the Kilo-Degree Survey (KiDS-1000), which doubles the survey area with nine-band optical and near-infrared photometry with respect to previous KiDS analyses ...
M. Asgari, Chieh-An Lin, B. Joachimi, B. Giblin, C. Heymans, H. Hildebrandt, A. Kannawadi, B. Stolzner, T. Troster, J. L. V. D. Busch, A. Wright, Maciej Bilicki, C. Blake, J. D. Jong, A. Dvornik, T. Erben, Fedor I. Getman, H. Hoekstra, F. Kohlinger, K. Kuijken, L. Miller, M. Radovich, P. Schneider, H. Shan   +23 more
semanticscholar   +1 more source

Cosmology from weak lensing peaks and minima with Subaru Hyper Suprime-Cam survey first-year data [PDF]

, 2023
We present cosmological constraints derived from peak counts, minimum counts, and the angular power spectrum of the Subaru Hyper Suprime-Cam first-year (HSC Y1) weak lensing shear catalog.
G. Marques, Jia Liu, M. Shirasaki, L. Thiele, Daniela Grand'on, K. Huffenberger, Sihao Cheng, J. Harnois-D'eraps, K. Osato, W. Coulton   +9 more
semanticscholar   +1 more source

Measurement of the CMB temperature power spectrum and constraints on cosmology from the SPT-3G 2018 TT , [PDF]

Physical Review D, 2022
We present a sample-variance-limited measurement of the temperature power spectrum ($TT$) of the cosmic microwave background (CMB) using observations of a $\sim\! 1500 \,\mathrm{deg}^2$ field made by SPT-3G in 2018.
L. Balkenhol, D. Dutcher, A. Spurio Mancini, A. Doussot, K. Benabed, S. Galli, P. A. R. Ade, A. J. Anderson, B. Ansarinejad, M. Archipley, A. N. Bender, B. Benson, F. Bianchini, L. Bleem, F. Bouchet, L. Bryant, E. Camphuis, J. Carlstrom, T. Cecil, C. L. Chang, P. Chaubal, P. Chichura, T. Chou, A. Coerver, T. Crawford, A. Cukierman, C. Daley, T. de Haan, K. Dibert, M. A. Dobbs, W. Everett, C. Feng, K. R. Ferguson, A. Foster, A. Gambrel, R. Gardner, N. Goeckner-Wald, R. Gualtieri, F. Guidi, S. Guns, N. Halverson, E. Hivon, G. Holder, W. L. Holzapfel, J. Hood, N. Huang, L. Knox, M. Korman, C. Kuo, A. T. Lee, A. Lowitz, C. Lu, M. Millea, J. Montgomery, Y. Nakato, T. Natoli, G. Noble, V. Novosad, Y. Omori, S. Padin, Z. Pan, P. Paschos, K. Prabhu, W. Quan, M. Rahimi, A. Rahlin, C. Reichardt, M. Rouble, J. Ruhl, E. Schiappucci, G. Smecher, J. Sobrin, A. A. Stark, J. Stephen, A. Suzuki, C. Tandoi, K. L. Thompson, B. Thorne, C. Tucker, C. Umilta, J. D. Vieira, G. Wang, N. Whitehorn, W. Wu, V. Yefremenko, M. R. Young, J. Zebrowski   +86 more
semanticscholar   +1 more source