Anisotropic universe and observational constraint on the dark energy models with the cosmological redshift drift

التفاصيل البيبلوغرافية
العنوان: Anisotropic universe and observational constraint on the dark energy models with the cosmological redshift drift
المؤلفون: H. Hossienkhani, S. Gheysari, Z. Zarei, N. Azimi
المصدر: New Astronomy. 84:101465
بيانات النشر: Elsevier BV, 2021.
سنة النشر: 2021
مصطلحات موضوعية: Physics, Deceleration parameter, 010308 nuclear & particles physics, Equation of state (cosmology), media_common.quotation_subject, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Cosmological constant, 01 natural sciences, Redshift, Universe, symbols.namesake, Space and Planetary Science, 0103 physical sciences, Dark energy, symbols, Baryon acoustic oscillations, 010303 astronomy & astrophysics, Instrumentation, media_common, Hubble's law
الوصف: This study set out to examine the effect of anisotropy on the various dark energy models by using the observational data, including the Sandage-Loeb test, Strongly gravitationally lensing, observational Hubble data, and Baryon Acoustic Oscillations data. In particular, we consider three cases of dark energy models: the cosmological constant model, which is most favored by current observations, the wCDM model where dark energy is introduced with constant w equation of state parameter and in Chevalier-Polarski-Linder parametrization where ω is allowed to evolve with redshift. With an anisotropy framework, a maximum likelihood method to constrain the cosmological parameters was implemented. With an anisotropic universe, we also study the behavior of different cosmological parameters such as Hubble parameter, EoS parameter, and deceleration parameter of dark energy models mentioned. The results indicate that the Bianchi type I model for the dark energy models are consistent with the combined observational data.
تدمد: 1384-1076
DOI: 10.1016/j.newast.2020.101465
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::b1d8b426cb658c5392834f52a505ff7d
https://doi.org/10.1016/j.newast.2020.101465
Rights: CLOSED
رقم الانضمام: edsair.doi...........b1d8b426cb658c5392834f52a505ff7d
قاعدة البيانات: OpenAIRE
الوصف
تدمد:13841076
DOI:10.1016/j.newast.2020.101465