Events2nd Electronic Conference on Universe
Event submissions
Published
with-doi10.3390/ECU2023-14057
This submission belongs to the session S1. Gravitation and Cosmology of the event 2nd Electronic Conference on Universe
Published date
17 Feb, 2023
Academic Editor
author-avatarLorenzo Iorio
Citation
Aroonkumar Beesham, Binaya Kumar Bishi, Pratik Lepse, Impact of particle creation in Rastall gravity, in Proceedings of 2nd Electronic Conference on Universe, 16 February–2 March 2023, MDPI: Basel, Switzerland, doi: 10.3390/ECU2023-14057
Share
Email
Facebook
Twitter
LinkedIn

Impact of particle creation in Rastall gravity

Binaya Kumar Bishi 1,2
Pratik Lepse 2
Aroonkumar Beesham 1,3
1. University of Zululand, South Africa
2. Lovely Professional University, India
3. Mangosuthu University of Technology, South Africa, South Africa
Abstract

We investigate the Friedmann-Lemaitre-Robertson-Walker (FLRW)

cosmological models within the framework of Rastall gravity incorporating

particle creation. The modified field equations for Rastall gravity are

derived and exact solutions are obtained under various assumptions of the

scale factor. The qualitative behaviour of our solutions depends on the

Rastall coupling parameter ψ = kλ. Following Akarsu et al. 2020 [Eur.

Phys. J. C 80, 1050], we have restricted the Rastall coupling parameter

ψ (k = 1) to the range -0.0001 < ψ < 0.0007 at 68% CL from CMB+BAO

data. Further, we have discussed the distinct physical behaviour of the

derived models in detail.

Keywords
Rastall gravity
particle creation
dark energy
Manuscript
template.pdf
Dark Matter stimulated neutrinoless double beta decay
Regular hairy Viadya solution by gravitational decoupling