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Title: Two new tests to the distance duality relation with galaxy clusters

Abstract

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.

Authors:
 [1];  [2];  [3]
  1. Departamento de Astronomia, Observatório Nacional, Street General José Cristino, Rio de Janeiro (Brazil)
  2. Department of Mathematics and Applied Mathematics, Astrophysics, Cosmology and Gravity Centre, University of Cape Town, Rondebosch, Cape Town (South Africa)
  3. Departamento de Física, Universidade Estadual da Paraíba, Street Baraúnas, Campina Grande (Brazil)
Publication Date:
OSTI Identifier:
22525215
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2015; Journal Issue: 10; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTROPHYSICS; COSMOLOGY; DISTANCE; DUALITY; GALAXY CLUSTERS; GAUSSIAN PROCESSES; LIMITING VALUES; LUMINOSITY; MASS

Citation Formats

Santos-da-Costa, Simony, Busti, Vinicius C., and Holanda, Rodrigo F.L., E-mail: simonycosta.nic@gmail.com, E-mail: vcbusti@astro.iag.usp.br, E-mail: holanda@uepb.edu.br. Two new tests to the distance duality relation with galaxy clusters. United States: N. p., 2015. Web. doi:10.1088/1475-7516/2015/10/061.
Santos-da-Costa, Simony, Busti, Vinicius C., & Holanda, Rodrigo F.L., E-mail: simonycosta.nic@gmail.com, E-mail: vcbusti@astro.iag.usp.br, E-mail: holanda@uepb.edu.br. Two new tests to the distance duality relation with galaxy clusters. United States. doi:10.1088/1475-7516/2015/10/061.
Santos-da-Costa, Simony, Busti, Vinicius C., and Holanda, Rodrigo F.L., E-mail: simonycosta.nic@gmail.com, E-mail: vcbusti@astro.iag.usp.br, E-mail: holanda@uepb.edu.br. Thu . "Two new tests to the distance duality relation with galaxy clusters". United States. doi:10.1088/1475-7516/2015/10/061.
@article{osti_22525215,
title = {Two new tests to the distance duality relation with galaxy clusters},
author = {Santos-da-Costa, Simony and Busti, Vinicius C. and Holanda, Rodrigo F.L., E-mail: simonycosta.nic@gmail.com, E-mail: vcbusti@astro.iag.usp.br, E-mail: holanda@uepb.edu.br},
abstractNote = {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.},
doi = {10.1088/1475-7516/2015/10/061},
journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 10,
volume = 2015,
place = {United States},
year = {2015},
month = {10}
}