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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Two new tests to the distance duality relation with galaxy clusters

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Autor(es):
Santos-da-Costa, Simony [1, 2] ; Busti, Vinicius C. [3, 4, 5] ; Holanda, Rodrigo F. L. [2, 6]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Observ Nacl, Dept Astron, Rio De Janeiro - Brazil
[2] Univ Fed Campina Grande, Dept Fis, Campina Grande - Brazil
[3] Univ Sao Paulo, Inst Fis, Dept Fis Matemat, BR-01498 Sao Paulo - Brazil
[4] Univ Cape Town, Dept Math, ZA-7925 Cape Town - South Africa
[5] Univ Cape Town, Appl Math Astrophys Cosmol & Grav Ctr, ZA-7925 Cape Town - South Africa
[6] Univ Estadual Paraiba, Dept Fis, Campina Grande - Brazil
Número total de Afiliações: 6
Tipo de documento: Artigo Científico
Fonte: Journal of Cosmology and Astroparticle Physics; n. 10 OCT 2015.
Citações Web of Science: 23
Resumo

The cosmic distance duality relation is a milestone of cosmology involving the luminosity and angular diameter distances. Any departure of the relation points to new physics or systematic errors in the observations, therefore tests of the relation are extremely important to build a consistent cosmological framework. Here, two new tests are proposed based on galaxy clusters observations (angular diameter distance and gas mass fraction) and H(z) measurements. By applying Gaussian Processes, a non-parametric method, we are able to derive constraints on departures of the relation where no evidence of deviation is found in both methods, reinforcing the cosmological and astrophysical hypotheses adopted so far. (AU)

Processo FAPESP: 14/21098-1 - Cosmologia de precisão com o Dark Energy Survey
Beneficiário:Vinicius Consolini Busti
Linha de fomento: Bolsas no Brasil - Pós-Doutorado