Dark torsion as the cosmic speed-up

By Gabriel Bengochea, R. Ferraro. 2008

921 citations recorded by the source corpus.

It is shown that the recently detected acceleration of the Uuniverse can be understood by considering a modification of the teleparallel equivalent of general relativity, with no need of dark energy. The solution also exhibits phases dominated by matter and radiation as expected in the standard cosmological evolution. We perform a joint analysis with measurements of the most recent type Ia supernovae, baryon acoustic oscillation peak, and estimates of the cosmic microwave background shift parameter data to constrain the only new parameter this theory has.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/e67b74e4e586b7edc770ef67744b104a2edc9d2e

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Citations in the corpus

Generalized Curvature-Matter Couplings in Modified Gravity (2014, methodology): “r coupling. As for the term: ~a H = r dL m(ˆ) dˆ (36) it has to be identiﬁed with the hydrodynamic acceleration term in the perfect ﬂuid Euler equation: ~a H = r dL m(ˆ) dˆ = r Z ˆ ˆ 0 dp dˆ dˆ ˆ (37) where ˆ 0, an integration constant, plays the role of a limiting density. 2.3.2. The Matter Lagra”
Modified Gravity and Cosmology (2011, background): “A large number of papers have followed [135] in a short space of time, exploring the transition from deceleration to acceleration, observational constraints, conformal transformations, and structure formation [815, 1287, 932, 1288, 1227, 289, 134, 1286, 78, 933, 681, 1293, 1308, 79].”