Results 141 to 150 of about 13,060 (254)

Hints of the $H_0-r_d$ tension in uncorrelated Baryon Acoustic Oscillations dataset

, 2021
Denitsa Staicova
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Baryon Acoustic Oscillations. Equation and physical interpretation

Scientia et Technica, 2018
Baryon Acoustic Oscillations are a phenomenon occurred before matter-radiation decoupling, characterized because the baryonic matter perturbation presents oscillations, as the name suggests. These perturbations propagate like a pressure wave on the photon-baryon fluid produced by gravitational potentials, which join the baryonic matter, and collisions ...
openaire   +1 more source

THE CORRELATION FUNCTION OF GALAXY CLUSTERS AND DETECTION OF BARYON ACOUSTIC OSCILLATIONS [PDF]

, 2012
Tao Hong, J. L. Han, Z. L. Wen, Lei Sun, Hu Zhan   +4 more
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Constraints on the speed of sound in the k-essence model of dark energy

European Physical Journal C: Particles and Fields
We consider a k-essence scalar field model for the late-time cosmic acceleration in which the sound speed, parametrized as $$c_s$$ c s is constant. We compute the relevant background and perturbation quantities corresponding to the observables like ...
Bikash R. Dinda, Narayan Banerjee
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Time-sliced perturbation theory II: baryon acoustic oscillations and infrared resummation [PDF]

, 2016
Diego Blas, Mathias Garny, Mikhail M. Ivanov, Sergey Sibiryakov   +3 more
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Measurement of baryon acoustic oscillation correlations atz = 2.3 with SDSS DR12 Lyα-Forests [PDF]

, 2017
Julian Bautista, Nicolás G. Busca, J. Guy, J. Rich, Michael Blomqvist, Hélion du Mas des Bourboux, Matthew M. Pieri, Andreu Font-Ribera, S. Bailey, Timothée Delubac, D. Kirkby, Jean-Marc Le Goff, Daniel Margala, Anže Slosar, J. Alberto Vázquez, Joel R. Brownstein, Kyle Dawson, Daniel J. Eisenstein, Jordi Miralda‐Escudé, P. Noterdaeme, N. Palanque‐Delabrouille, Isabelle Pâris, Patrick Petitjean, Nicholas P. Ross, Donald P. Schneider, David H. Weinberg, Christophe Yèche   +26 more
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On the possibility of baryon acoustic oscillation measurements at redshift z > 7.6 with the Roman space telescope [PDF]

, 2020
Siddharth Satpathy, Zhaozhou An, Rupert A. C. Croft, Tiziana Di Matteo, Ananth Tenneti, Yu Feng, Katrin Heitmann, Graziano Rossi   +7 more
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Uncalibrated Cosmic Standards as a Robust Test on Late-time Cosmological Models

The Astrophysical Journal
We present an assumption-minimized framework for testing late-time cosmological models using uncalibrated cosmic standards (UCS)—including standard rulers and standard candles—without relying on absolute calibrations.
Yihao Wang, Weikang Lin
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Study of Baryon Acoustic Oscillations with SDSS DR13 Data and Measurements of Ω<sub>k</sub> and Ω<sub>DE</sub>(a)

, 2017
B. Hoeneisen
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Baryon acoustic oscillations in the Sloan Digital Sky Survey Data Release 7 galaxy sample [PDF]

, 2009
Will J. Percival, Beth Reid, Daniel J. Eisenstein, Neta A. Bahcall, Tamás Budavári, Joshua A. Frieman, M. Fukugita, James E. Gunn, Željko Ivezić, G. R. Knapp, Richard G. Kron, J. Loveday, Robert H. Lupton, Timothy A. McKay, Avery Meiksin, Robert C. Nichol, Adrian Pope, David J. Schlegel, Donald P. Schneider, David N. Spergel, Chris Stoughton, Michael A. Strauss, Alexander S. Szalay, Max Tegmark, Michael S. Vogeley, David H. Weinberg, Donald G. York, Idit Zehavi   +27 more
openalex   +1 more source