تقرير
An Axially Symmetric Transitioning models with Observational Constraints
| العنوان: | An Axially Symmetric Transitioning models with Observational Constraints |
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| المؤلفون: | Bhardwaj, Vinod Kumar, Dixit, Archana, Rani, Rita, Goswami, G. K., Pradhan, Anirudh |
| سنة النشر: | 2022 |
| المجموعة: | General Relativity and Quantum Cosmology |
| مصطلحات موضوعية: | General Relativity and Quantum Cosmology |
| الوصف: | In this study, we have demonstrated the expansion history of an axially symmetric Bianchi type-I model of the universe. Our model as of now presents an accelerating universe, which had been in the decelerating phase in the past. Roles of the two crucial Hubble~$H(z)$ and deceleration~$q(z)$ parameters are examined. The energy parameters of the universe are estimated with the help of the latest observational Hubble data (46-data points) and Pantheon data (the latest compilation of SNIa with 40 binned in the redshift range $0.014 \leq z \leq 1.62)$. We also discuss the stability analysis of the model by state finder diagnosis. The analysis reveals that in late time, the model is a quintessence type and points towards the $\Lambda$CDM model. Our developed model agrees with observational findings in a proper way. We have discussed some of the physical aspects of the model. Comment: 19 pages, 10 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.cjph.2022.09.007 |
| URL الوصول: | http://arxiv.org/abs/2204.04451 |
| رقم الأكسشن: | edsarx.2204.04451 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.cjph.2022.09.007 |
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