Report
Bayesian Comparison of the Cosmic Duality Scenarios
| العنوان: | Bayesian Comparison of the Cosmic Duality Scenarios |
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| المؤلفون: | da Silva, W. J. C., Holanda, R. F. L., Silva, R. |
| المصدر: | Phys. Rev. D 102, 063513 (2020) |
| سنة النشر: | 2020 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Cosmology and Nongalactic Astrophysics |
| الوصف: | The cosmic distance duality relation (CDDR), $D_{\rm L}(1+z)^{-2}/D_{\rm A}=\eta=1$, with $D_{\rm L}$ and $D_{\rm A}$, being the luminosity and angular diameter distances, respectively, is a crucial premise in cosmological scenarios. Many investigations try to test CDDR through observational approaches, even some of these ones also consider a deformed CDDR, i.e., $\eta=\eta(z)$. In this paper, we use type Ia supernovae luminosity distances and galaxy cluster measurements (their angular diameter distances and gas mass fractions) in order to perform a Bayesian model comparison between $ \eta(z) $ functions. We show that the data here used are unable to pinpoint, with a high degree of Bayesian evidence, which $\eta(z)$ function best captures the evolution of CDDR. Comment: 10 pages, 3 figures, 3 tables. v3: matches version published in PRD |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevD.102.063513 |
| URL الوصول: | http://arxiv.org/abs/2005.04131 |
| رقم الانضمام: | edsarx.2005.04131 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevD.102.063513 |
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