Cosmological-model-independent tests of cosmic distance duality relation with Type Ia supernovae and radio quasars (2022)
- Authors:
- Autor USP: QIAN, WEILIANG - EEL
- Unidade: EEL
- DOI: 10.1016/j.cjph.2022.06.009
- Subjects: BURACOS NEGROS; SUPERNOVAS; QUASARES; COSMOLOGIA
- Keywords: Cosmological parameters; Cosmology: observations; Supernovae; Quasars
- Agências de fomento:
- Language: Inglês
- Abstract: In this paper, we investigate the possible deviations of the cosmic distance duality relation (CDDR) using the combination of the largest SNe Ia (Pantheon) and compact radio quasar (QSO) samples through two model-independent approaches. The deviation of CDDR is written as 𝐷𝐿 (𝑧)∕𝐷𝐴(𝑧)(1 + 𝑧) −2 = 𝜂(𝑧) and 𝜂(𝑧) = 𝑒 𝜏(𝑧)∕2, with the parameterizations of 𝐹1 (𝜏(𝑧) = 2𝜖1 𝑧) and 𝐹2 (𝜏(𝑧) = (1 +𝑧) 2𝜖2 − 1). Furthermore, in order to compare the two resulting distances, two cosmological-model-independent methods, i.e., the nearby SNe Ia method and the GP method are employed to match the two distinct data at the same redshift. Our findings indicate that, compared with the results obtained in the literature, there is an improvement in precision when the latest SNe Ia and QSO samples are used. Specially, in the framework of nearby SNe Ia method, the CDDR would be constrained at the precision of 𝛥𝜖1 = 0.013 in Model 𝐹1 and 𝛥𝜖2 = 0.018 in Model 𝐹2 . Regarding the GP method, one observes that a larger data size would produce more stringent constraints on the CDDR parameters. Therefore, accompanied by further developments in cosmological observations and the analysis methods, our analysis provides an insight into the evidence for unaccounted opacity sources at an earlier stage of the universe, or at the very least the new physics involved.
- Imprenta:
- Source:
- Título: Chinese journal of physics
- ISSN: 05779073
- Volume/Número/Paginação/Ano: v.78, p.297-307, 2022
- Este periódico é de assinatura
- Este artigo é de acesso aberto
- URL de acesso aberto
- Cor do Acesso Aberto: green
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ABNT
HE, Yuan et al. Cosmological-model-independent tests of cosmic distance duality relation with Type Ia supernovae and radio quasars. Chinese journal of physics, v. 78, p. 297-307, 2022Tradução . . Disponível em: https://doi.org/10.1016/j.cjph.2022.06.009. Acesso em: 06 out. 2024. -
APA
He, Y., Pan, Y., Shi, D. -P., Cao, S., Yu, W. -J., Diao, J. -W., & Qian, W. -L. (2022). Cosmological-model-independent tests of cosmic distance duality relation with Type Ia supernovae and radio quasars. Chinese journal of physics, 78, 297-307. doi:10.1016/j.cjph.2022.06.009 -
NLM
He Y, Pan Y, Shi D-P, Cao S, Yu W-J, Diao J-W, Qian W-L. Cosmological-model-independent tests of cosmic distance duality relation with Type Ia supernovae and radio quasars [Internet]. Chinese journal of physics. 2022 ;78 297-307.[citado 2024 out. 06 ] Available from: https://doi.org/10.1016/j.cjph.2022.06.009 -
Vancouver
He Y, Pan Y, Shi D-P, Cao S, Yu W-J, Diao J-W, Qian W-L. Cosmological-model-independent tests of cosmic distance duality relation with Type Ia supernovae and radio quasars [Internet]. Chinese journal of physics. 2022 ;78 297-307.[citado 2024 out. 06 ] Available from: https://doi.org/10.1016/j.cjph.2022.06.009 - Onset of chaotic gravitational lensing in non-Kerr rotating black holes with quadrupole mass moment
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Informações sobre o DOI: 10.1016/j.cjph.2022.06.009 (Fonte: oaDOI API)
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