Ellipsoidal expansion of the Universe, cosmic shear, acceleration and jerk parameter
Dipartimento di Fisica dell’Università di Bari, 70126, Bari, Italy
2 INFN, Sezione di Bari, I-70126, Bari, Italy
* e-mail: firstname.lastname@example.org
Accepted: 25 April 2018
Published online: 17 May 2018
In order to study whether the anisotropy of the spacetime may induce differences in the cosmic shear or in the deceleration parameter, we investigate in the Bianchi I Universe the most general expression for the cosmic shear and we study the connections between deceleration parameter and cosmic shear. We also consider a shear parametric approach to measure the transition from a decelerating to an accelerating Universe. We also study the connection between jerk parameter and ellipsoidal Universe.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2018