Accelerating universe in modified teleparallel gravity theory. Issue Volume 15:Issue S356(2019) (October 2019)

• Record Type: Journal Article
• Authors: Sahlu, Shambel; Ntahompagaze, Joseph; Abebe, Amare; Mota, David F.
• Editors: Pović, Mirjana; Marziani, Paola; Masegosa, Josefa; Netzer, Hagai; Negu, Seblu H.; Tessema, Solomon B.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 15:Issue S356(2019)
• Page Start: 397
• Page End: 399
• Publication Date: 2019-10
• Subjects: f(T, B) gravity theory, -- accelerating universe, -- equation of state parameter; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921320003567
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: This paper studies the cosmology of accelerating expansion of the universe in modified teleparallel gravity theory. We discuss the cosmology of f ( T, B ) gravity theory and its implication to the new general form of the equation of state parameter wTB for explaining the late-time accelerating expansion of the universe without the need for the cosmological constant scenario. We examine the numerical value of wTB in different paradigmatic f ( T, B ) gravity models. In those models, the numerical result of wTB is favored with observations in the presence of the torsion scalar T associated with a boundary term B and shows the accelerating expansion of the universe.