Constraints of Anisotropy on Warm Power-Law Ination in Light of Planck Results | ||
| Iranian Journal of Astronomy and Astrophysics | ||
| دوره 8، شماره 1، خرداد 2021، صفحه 15-28 اصل مقاله (671.79 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22128/ijaa.2021.479.1103 | ||
| نویسندگان | ||
| Zahra Ghadiry1؛ Ali Aghamohammadi* 2؛ Abdollah Refaei1 | ||
| 1Sanandaj Branch, Islamic Azad, Sanandaj, Iran | ||
| 2Department of physics, Sanandaj Branch, Islamic Azad University, Sanandaj , Iran | ||
| چکیده | ||
| 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 | ||
| کلیدواژهها | ||
| Warm power-law inflation؛ Weak and Strong dissipative regimes؛ Planck 2013 and 2015؛ Anisotro | ||
| مراجع | ||
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