Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Andrade, Uendert"'
Autor:
Forero-Sánchez, Daniel, Rashkovetskyi, Michael, Alves, Otávio, de Mattia, Arnaud, Nadathur, Seshadri, Zarrouk, Pauline, Gil-Marín, Héctor, Ding, Zhejie, Yu, Jiaxi, Andrade, Uendert, Chen, Xinyi, Garcia-Quintero, Cristhian, Mena-Fernández, Juan, Ahlen, Steven, Bianchi, Davide, Brooks, David, Burtin, Etienne, Chaussidon, Edmond, Claybaugh, Todd, Cole, Shaun, de la Macorra, Axel, Vargas, Miguel Enriquez, Gaztañaga, Enrique, Gutierrez, Gaston, Honscheid, Klaus, Howlett, Cullan, Kisner, Theodore, Landriau, Martin, Guillou, Laurent Le, Levi, Michael, Miquel, Ramon, Moustakas, John, Palanque-Delabrouille, Nathalie, Percival, Will, Pérez-Ràfols, Ignasi, Ross, Ashley J., Rossi, Graziano, Sanchez, Eusebio, Schlegel, David, Schubnell, Michael, Seo, Hee-Jong, Sprayberry, David, Tarlé, Gregory, Magana, Mariana Vargas, Weaver, Benjamin Alan, Zou, Hu
The estimation of uncertainties in cosmological parameters is an important challenge in Large-Scale-Structure (LSS) analyses. For standard analyses such as Baryon Acoustic Oscillations (BAO) and Full Shape, two approaches are usually considered. Firs
Externí odkaz:
http://arxiv.org/abs/2411.12027
The cosmic acceleration problem remains one of the most significant challenges in cosmology. One of the proposed solutions to this problem is the modification of gravity on large scales. In this paper, we explore the well-known $\mu$-$\Sigma$ paramet
Externí odkaz:
http://arxiv.org/abs/2309.15781
Autor:
Shao, Xiaoyun, Gonçalves, Rodrigo S., Bengaly, Carlos A. P., Andrade, Uendert, Carvalho, Gabriela C., Alcaniz, Jailson
In standard cosmology, the cosmic homogeneity scale is the transition scale above which the patterns arising from non-uniformities -- such as groups and clusters of galaxies, voids, and filaments -- become indistinguishable from a random distribution
Externí odkaz:
http://arxiv.org/abs/2309.07263
Autor:
Andrade, Uendert, Gonçalves, Rodrigo S., Carvalho, Gabriela C., Bengaly, Carlos A. P., Carvalho, Joel C., Alcaniz, Jailson
We report measurements of the angular scale of cosmic homogeneity ($\theta_{H}$) using the recently released luminous red galaxy sample of the sixteenth data release of the Sloan Digital Sky Survey (SDSS-IV LRG DR16). It consists of a model-independe
Externí odkaz:
http://arxiv.org/abs/2205.07819
Autor:
Andrade, Uendert, Anbajagane, Dhayaa, von Marttens, Rodrigo, Huterer, Dragan, Alcaniz, Jailson
Publikováno v:
JCAP 11 (2021) 014
We perform a general test of the $\Lambda{\rm CDM}$ and $w {\rm CDM}$ cosmological models by comparing constraints on the geometry of the expansion history to those on the growth of structure. Specifically, we split the total matter energy density, $
Externí odkaz:
http://arxiv.org/abs/2107.07538
Autor:
Gonçalves, Rodrigo S., Carvalho, Gabriela C., Andrade, Uendert, Bengaly, Carlos A. P., Carvalho, Joel C., Alcaniz, Jailson
Publikováno v:
JCAP 03 (2021) 029
We report measurements of the scale of cosmic homogeneity ($r_{h}$) using the recently released quasar sample of the sixteenth data release of the Sloan Digital Sky Survey (SDSS-IV DR16). We perform our analysis in 2 redshift bins lying in the redshi
Externí odkaz:
http://arxiv.org/abs/2010.06635
The assumption of homogeneity and isotropy on large scales is one of the main hypotheses of the standard cosmology. In this paper, we test the hypothesis of isotropy from the two-point angular correlation function of 2626 gamma-ray bursts (GRB) of th
Externí odkaz:
http://arxiv.org/abs/1905.08864
Akademický článek
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Publikováno v:
EPJC 79: 768 (2019)
We address the $\simeq 4.4\sigma$ tension between local and the CMB measurements of the Hubble Constant using simulated Type Ia Supernova (SN) data-sets. We probe its directional dependence by means of a hemispherical comparison through the entire ce
Externí odkaz:
http://arxiv.org/abs/1810.04966
Publikováno v:
ApJ 865 (2018) 2
The assumption of homogeneity and isotropy on large scales is one of the main hypotheses of the standard cosmological model. In this paper, we revisit a test of cosmological isotropy using type Ia supernova (SN Ia) distances provided by the latest SN
Externí odkaz:
http://arxiv.org/abs/1806.06990