Constraints of Anisotropy on Warm Power-Law Ination in Light of Planck Results
In this article, we examine the effects of anisotropy on a model of canonical warm inflation with the power-law potential. And we have compared the limitations of this model with Planck's results. Using a conventional local scalar field in the Bianchi type I metric, we have estimated the slow-r...
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| Format: | Article |
| Language: | English |
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Damghan university
2021-03-01
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| Series: | Iranian Journal of Astronomy and Astrophysics |
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| Online Access: | https://ijaa.du.ac.ir/article_239_d1e10a987e15a449e8ec2c846f6fd91f.pdf |
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| author | Zahra Ghadiry Ali Aghamohammadi Abdollah Refaei |
| author_facet | Zahra Ghadiry Ali Aghamohammadi Abdollah Refaei |
| author_sort | Zahra Ghadiry |
| collection | DOAJ |
| description | In this article, we examine the effects of anisotropy on a model of canonical warm inflation with the power-law potential. And we have compared the limitations of this model with Planck's results. Using a conventional local scalar field in the Bianchi type I metric, we have estimated the slow-roll conditions and the suitable regions in which the specific free parameters obtained from the theoretical calculations are in good agreement with the Planck results. Here, as is the usual calculation method in warm inflation, we examine the early universe in two different dissipative regimes, including the weak dissipative regime and the strong dissipative regime, and obtain the field equations. Then we calculate the slow-roll parameters and observational indexes in both regimes and finally, we show that this model has been able to make a good agreement by comparing the theoretical results and observational data obtained from cosmic microwave background and Planck satellites 2013 and 2015 |
| format | Article |
| id | doaj-art-73fa97c4a5f4482b8af083fbb48c5a85 |
| institution | Kabale University |
| issn | 2322-4924 2383-403X |
| language | English |
| publishDate | 2021-03-01 |
| publisher | Damghan university |
| record_format | Article |
| series | Iranian Journal of Astronomy and Astrophysics |
| spelling | doaj-art-73fa97c4a5f4482b8af083fbb48c5a852025-01-12T10:10:21ZengDamghan universityIranian Journal of Astronomy and Astrophysics2322-49242383-403X2021-03-0181152810.22128/ijaa.2021.479.1103239Constraints of Anisotropy on Warm Power-Law Ination in Light of Planck ResultsZahra Ghadiry0Ali Aghamohammadi1Abdollah Refaei2Sanandaj Branch, Islamic Azad, Sanandaj, IranDepartment of physics, Sanandaj Branch, Islamic Azad University, Sanandaj , IranSanandaj Branch, Islamic Azad, Sanandaj, IranIn this article, we examine the effects of anisotropy on a model of canonical warm inflation with the power-law potential. And we have compared the limitations of this model with Planck's results. Using a conventional local scalar field in the Bianchi type I metric, we have estimated the slow-roll conditions and the suitable regions in which the specific free parameters obtained from the theoretical calculations are in good agreement with the Planck results. Here, as is the usual calculation method in warm inflation, we examine the early universe in two different dissipative regimes, including the weak dissipative regime and the strong dissipative regime, and obtain the field equations. Then we calculate the slow-roll parameters and observational indexes in both regimes and finally, we show that this model has been able to make a good agreement by comparing the theoretical results and observational data obtained from cosmic microwave background and Planck satellites 2013 and 2015https://ijaa.du.ac.ir/article_239_d1e10a987e15a449e8ec2c846f6fd91f.pdfwarm power-law inflationweak and strong dissipative regimesplanck 2013 and 2015anisotro |
| spellingShingle | Zahra Ghadiry Ali Aghamohammadi Abdollah Refaei Constraints of Anisotropy on Warm Power-Law Ination in Light of Planck Results Iranian Journal of Astronomy and Astrophysics warm power-law inflation weak and strong dissipative regimes planck 2013 and 2015 anisotro |
| title | Constraints of Anisotropy on Warm Power-Law Ination in Light of Planck Results |
| title_full | Constraints of Anisotropy on Warm Power-Law Ination in Light of Planck Results |
| title_fullStr | Constraints of Anisotropy on Warm Power-Law Ination in Light of Planck Results |
| title_full_unstemmed | Constraints of Anisotropy on Warm Power-Law Ination in Light of Planck Results |
| title_short | Constraints of Anisotropy on Warm Power-Law Ination in Light of Planck Results |
| title_sort | constraints of anisotropy on warm power law ination in light of planck results |
| topic | warm power-law inflation weak and strong dissipative regimes planck 2013 and 2015 anisotro |
| url | https://ijaa.du.ac.ir/article_239_d1e10a987e15a449e8ec2c846f6fd91f.pdf |
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