Super Exponential Expansion for Dark Energy Model with Variable Λ in f (R, T) Gravity
International Journal of Astrophysics and Space Science
Volume 5, Issue 3, June 2017, Pages: 41-46
Received: Mar. 28, 2017;
Accepted: Apr. 13, 2017;
Published: Jun. 2, 2017
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Mohammad Moksud Alam, Department of Mathematics, University of Chittagong, Chittagong, Bangladesh
Mohammad Amjad Hossain, Department of Mathematics, University of Chittagong, Chittagong, Bangladesh
Mohammad Ashraful Islam, Department of Mathematics, University of Chittagong, Chittagong, Bangladesh
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In this paper, we have studied Friedmann-Robertson-Walker (FRW) cosmological model with quadratic equation of state and cosmological constant in the presence of perfect fluid source in f (R, T) gravity. To obtain an exact solution of the field equations of the theory, we have used quadratic equation of state and time dependent deceleration parameter q (t). The physical and geometrical behavior of the model is also discussed.
f (R, T) Gravity, Cosmological Model, Quadratic Equation of State, Cosmological Constant, Deceleration Parameter
To cite this article
Mohammad Moksud Alam,
Mohammad Amjad Hossain,
Mohammad Ashraful Islam,
Super Exponential Expansion for Dark Energy Model with Variable Λ in f (R, T) Gravity, International Journal of Astrophysics and Space Science.
Vol. 5, No. 3,
2017, pp. 41-46.
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
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Tegmark M. et al.: Cosmological parameters from SDSS and WMAP. Phys. Rev. D 69, 103501 (2004).
Speergel, D. N., et al.: First year Wilkinson Microwave Anisotropy Probe (WMAP) observations: determination of cosmological parameters. Astrophys. J. Suppl. Ser. 148, 175 (2003).
Riess, A. G., et al.: Observational evidence from supernovae for an accelerating universe and a cosmological constant. Astron. J. 116, 1009 (1998).
Perlmutter, S., et al.: Measurements of and from 42 high-redshift supernova, Astrophys. J. 517, 565 (1999).
Padmanabhan, T.: Accelerated expansion of the universe driven by tachyonicmatter. Phys. Rev. D 66, 021301 (R) (2002).
Bento M. C., Bertolami O., Sen A. A.: Generalized Chaplygin gas, accelerated expansion, and dark-energy matter unification. Phys. Rev. D 66, 043507 (2002).
Nojiri S., Odintsov S. D.: Modified gravity consistent with realistic cosmology: From a matter dominated epoch to a dark energy universe. Phys. Rev. D 74, 086005 (2006).
Bertolami O. et al.: Extra force in modified theories of gravity. Phys. Rev. D 75, 104016 (2007).
Bengochea G. R., Ferraro R.: Dark torsion as the cosmic speed-up. Phys. Rev. D 79, 124019 (2007).
Harko et al.: gravity, Phys. Rev. D 84, 024020 (2011).
Sahoo P. K., Sivakumar M.: LRS Bianchi-I cosmological model in theory of gravity with . Astrophys Space Sci, 357: 60 (2015).
Ramesh G., Umadevi S.: Cosmological models with linearly varying deceleration parameter in gravity. Astrophys Space Sci, 361: 2 (2016).
Akarsu, O., Dereli, T.: Cosmological models with linearly varying deceleration parameter. Int. J. Theor. Phys. 51, 612 (2012).
Ananda K. N., Bruni M.: Cosmological dynamics and dark energy with a non-linear equation of state: A quadratic model. Phys. Rev. D 74, 023523 (2006).
Reddy D. R. K., Adhav K. S., Purandare M. A.: Bianchi type-I cosmological model with quadratic equation of state. Astrophys Space Sci, 357: 20 (2015).
Akarsu, O., et al.: Probing kinematics and fate of the universe with linearly varying deceleration parameter. Eur. Phys. J. Plus 129, 22 (2014).
Berman M. S.: NuovoCimento B 74, 182 (1983).
Caldwell, R. R., et al.: Phys. Rev. Lett. 91, 071301 (2003).