An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory

Çağlar, Halife

doi:10.53570/jnt.1352470

An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory

Halife ÇAĞLAR (Çanakkale Onsekiz Mart Üniversitesi, Biga Meslek Yüksekokulu, Elektrik ve Enerji Bölümü, Çanakkale, Türkiye)

Journal of New Theory

6 1

Yıl: 2023 Cilt: Sayı: 44 Sayfa Aralığı: 87 - 96 Metin Dili: İngilizce DOI: 10.53570/jnt.1352470 İndeks Tarihi: 22-10-2023

An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory

Öz:

In this study, the homogenous and anisotropic locally rotationally symmetric (LRS) Bianchi type-I universe filled with the bulk viscous and the string cloud matter has been investigated in the Brans-Dicke (BD) scalar-tensor theory. The modified Einstein field equations of the constructed model have been solved by using the relation of the scale factors $A=B^m$ and considering the deceleration parameter to be $q=m-1$. It is found that the string does not survive for the model due to the obtained zero string energy density ($rho_s=0$) and agrees with some studies in recent years. Moreover, it is possible to say that string matter may be turned into phantom energy over time, depending on the obtained negative rest energy density of the matter. When BD scalar field $Phi$ is assumed constant, the attained solutions are reduced to General Relativity (GR) solutions for the static vacuum. Thus, the constructed model has not allowed the reduction of the BD solutions to GR solutions, including the matter distributions. In addition, some expansion models for choosing a value of constant $m$ have been obtained and provided. All the results have been analyzed in detail.

Anahtar Kelime: LRS Bianchi I universe Brans-Dicke theory bulk viscous string cloud deceleration parameter

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

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APA	Çağlar H (2023). An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory. , 87 - 96. 10.53570/jnt.1352470
Chicago	Çağlar Halife An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory. (2023): 87 - 96. 10.53570/jnt.1352470
MLA	Çağlar Halife An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory. , 2023, ss.87 - 96. 10.53570/jnt.1352470
AMA	Çağlar H An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory. . 2023; 87 - 96. 10.53570/jnt.1352470
Vancouver	Çağlar H An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory. . 2023; 87 - 96. 10.53570/jnt.1352470
IEEE	Çağlar H "An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory." , ss.87 - 96, 2023. 10.53570/jnt.1352470
ISNAD	Çağlar, Halife. "An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory". (2023), 87-96. https://doi.org/10.53570/jnt.1352470

APA	Çağlar H (2023). An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory. Journal of New Theory, (44), 87 - 96. 10.53570/jnt.1352470
Chicago	Çağlar Halife An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory. Journal of New Theory , no.44 (2023): 87 - 96. 10.53570/jnt.1352470
MLA	Çağlar Halife An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory. Journal of New Theory, vol., no.44, 2023, ss.87 - 96. 10.53570/jnt.1352470
AMA	Çağlar H An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory. Journal of New Theory. 2023; (44): 87 - 96. 10.53570/jnt.1352470
Vancouver	Çağlar H An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory. Journal of New Theory. 2023; (44): 87 - 96. 10.53570/jnt.1352470
IEEE	Çağlar H "An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory." Journal of New Theory, , ss.87 - 96, 2023. 10.53570/jnt.1352470
ISNAD	Çağlar, Halife. "An Investigation into LRS Bianchi I Universe in Brans-Dicke Theory". Journal of New Theory 44 (2023), 87-96. https://doi.org/10.53570/jnt.1352470