Zobrazeno 1 - 10
of 28
pro vyhledávání: '"L. R. Colaço"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 10, Pp 1-10 (2024)
Abstract Testing possible variations in fundamental constants of nature is a crucial endeavor in observational cosmology. This paper investigates potential cosmological variations in the fine structure constant ( $$\alpha $$ α ) through a non-parame
Externí odkaz:
https://doaj.org/article/b01bed9d3f124b9ebc2919c81d651261
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 9, Pp 1-9 (2021)
Abstract In order to probe a possible time variation of the fine-structure constant ( $$\alpha $$ α ), we propose a new method based on Strong Gravitational Lensing and Type Ia Supernovae observations. By considering a class of runaway dilaton model
Externí odkaz:
https://doaj.org/article/2454927dd67d4d989674c44a18333291
Gravitational lens time-delay as a probe of a possible time variation of the fine-structure constant
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 6, Pp 1-9 (2021)
Abstract A new method based on large scale structure observations is proposed to probe a possible temporal variation of the fine-structure constant ( $$\alpha $$ α ). Our analyses are based on time-delay of Strong Gravitational Lensing and Type Ia S
Externí odkaz:
https://doaj.org/article/60bfbc0d520e43f299d71ce3def515d1
Gravitational lens time-delay as a probe of a possible time variation of the fine-structure constant
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 6, Pp 1-9 (2021)
European Physical Journal
European Physical Journal
A new method based on large-scale structure observations is proposed to probe a possible time variation of the fine-structure constant ($\alpha$). Our analyses are based on time-delay of Strong Gravitational Lensing and Type Ia Supernovae observation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdfa8a22b0bd484491a173fa19c84976
https://doaj.org/article/60bfbc0d520e43f299d71ce3def515d1
https://doaj.org/article/60bfbc0d520e43f299d71ce3def515d1
Publikováno v:
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
In this paper, we propose a new test to the cosmic distance duality relation (CDDR), $D_L=D_A(1+z)^2$, where $D_L$ and $D_A$ are the luminosity and angular diameter distances, respectively. The data used correspond to 61 Type Ia Supernova luminosity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5398fad4482cae37d452b4406b109b7
http://arxiv.org/abs/1904.01342
http://arxiv.org/abs/1904.01342
Galaxy clusters have been used as a cosmic laboratory to verify a possible time variation of fundamental constants. Particularly, it has been shown that the ratio $Y_{SZ}D_{A}^{2}/C_{XZS}Y_X $, which is expected to be constant with redshift, can be u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efa1d1c93d3582e0175b6a261f2615ba
http://arxiv.org/abs/1901.10947
http://arxiv.org/abs/1901.10947
As is well known, measurements of the Sunyaev-Zeldovich effect can be combined with observations of the X-ray surface brightness of galaxy clusters to estimate the angular diameter distance to these structures. In this paper, we show that this techni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d75a82c984e8cbd6c004649e87f27956
Autor:
Costa Mazzi, João Vitor1 joao.mazzi@estudante.ufscar.br, Alves dos Santos, Jeronimo2 jeronimo@ufscar.br, Sanjuan Montebello, Adriana Estela2 adrianaesm@ufscar.br
Publikováno v:
GeSec: Revista de Gestao e Secretariado. 2023, Vol. 14 Issue 7, p11943-11959. 17p.
Autor:
Mazzi, João Vitor Costa1 joao.mazzi@estudante.ufscar.br, dos Santos, Jeronimo Alves2 jeronimo@ufscar.br, Montebello, Adriana Estela Sanjuan3 adrianaesm@ufscar.br
Publikováno v:
GeSec: Revista de Gestao e Secretariado. 2023, Vol. 14 Issue 5, p8556-8571. 16p.
Publikováno v:
European Physical Journal C -- Particles & Fields. Sep2021, Vol. 81 Issue 9, p1-9. 9p.