In this paper we have considered a model of the universe filled with Generalized Cosmic Chaplygin Gas and another fluid with barotropic equation of state. We observe its role in accelerating phase of the universe by considering the mixture of these two fluid models valid from the radiation era to ？for ？and the radiation era to quintessence model for . The statefinder parameters describe the evolution of the universe in different phases for these two fluid models.
References
[1]
Riess, A.G., et al., Supernova Search Team Collaboration (1998) Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant. The Astrophysical Journal Supplement Series, 116, 1009-1038.
[2]
Perlmutter, S.J., et al. (1998) Discovery of a Supernova Explosion at Half the Age of the Universe. Nature, 391, 51-54. http://dx.doi.org/10.1038/34124
[3]
Tegmark, M., et al. (2004) Cosmological Parameters from SDSS and WMAP. Physical Review D, 69, Article ID: 103501. http://dx.doi.org/10.1103/PhysRevD.69.103501
[4]
Allen, S.W., Schmidt, R.W., Ebeling, H., Fabian, A.C. and Van Speybroeck, L. (2004) Constraints on Dark Energy from Chandra Observations of the Largest Relaxed Galaxy Clusters. Monthly Notices of the Royal Astronomical Society, 353, 457-467. http://dx.doi.org/10.1111/j.1365-2966.2004.08080.x
[5]
Spergel, D.N., Verde, L., Peiris, H.V., Komatsu, E., Nolta, M.R., Bennett, C.L., Halpern, M., Hinshaw, G., Jarosik, N., Kogut, A., Limon, M., Meyer, S.S., Page, L., Tucker, G.S., Weiland, J.L., Wollack, E. and Wright, E.L. (2003) First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters. The Astrophysical Journal Supplement Series, 148, 175-194. http://dx.doi.org/10.1086/377226
[6]
Komatsu, E., et al. (2009) Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation. The Astrophysical Journal Supplement Series, 180, 330-376. http://dx.doi.org/10.1088/0067-0049/180/2/330
[7]
Wetterich, C. (1988) Cosmology and the Fate of Dilatation Symmetry. Nuclear Physics B, 302, 668-696. http://dx.doi.org/10.1016/0550-3213(88)90193-9
[8]
Caldwell, R.R. (2002) A Phantom Menace? Cosmological Consequences of Dark Energy Component with Super Negative Equation of State. Physics Letters B, 545, 23-29. http://dx.doi.org/10.1016/S0370-2693(02)02589-3
[9]
Setare, M.R., Sadeghi, J. and Amani, A.R. (2009) Interacting Tachyon Dark Energy in Non-Flat Universe. Physics Letters B, 673, 241-246. http://dx.doi.org/10.1016/j.physletb.2009.02.041
Setare, M.R. (2009) Holographic Chaplygin DGP Cosmologies. International Journal of Modern Physics D, 18, 419-427. http://dx.doi.org/10.1142/S0218271809014558
[12]
Afshordi, N., Chung, D.J. and Geshnizjani, H. (2007) Casual Field Theory with an Infinite Speed of Sound. Physical Review D, 75, Article ID: 083513. http://dx.doi.org/10.1103/PhysRevD.75.083513
[13]
Kamenshchik, A., Moschella, U. and Pasquier, V. (2001) An Alternative to Quintessence. Physics Letters B, 511, 265. http://dx.doi.org/10.1016/S0370-2693(01)00571-8
[14]
Bordemann, M. and Hoppe, J. (1993) The Dynamics of Relativistic Membranes, Reduction to 2-Dimensional Fluid Dynamics. Physics Letters B, 317, 315-320. http://dx.doi.org/10.1016/0370-2693(93)91002-5
[15]
Gorini, V., Kamenshchik, A. and Moschella, U. (2003) Can the Chaplygin Gas Be a Plausible Model for Dark Energy? Physical Review D, 67, Article ID: 063509. http://dx.doi.org/10.1103/PhysRevD.67.063509
[16]
Alam, U., Sahni, V., Saini, T.D. and Starobinsky, A.A. (2003) Exploring the Expanding Universe and Dark Energy Using the Statefinder Diagnostic. Monthly Notices of the Royal Astronomical Society, 344, 1057-1074. http://dx.doi.org/10.1046/j.1365-8711.2003.06871.x
[17]
Bento, M.C., Bertolami, O. and Sen, A.A. (2002) Generalized Chaplygin Gas, Accelerated Expansion and Dark-Energy-Matter Unification. Physical Review D, 66, Article ID: 043507. http://dx.doi.org/10.1103/PhysRevD.66.043507
[18]
Benaoum, H.B. (2002) Accelerated Universe from Modified Chaplygin Gas and Tachyonic Fluid. http://arxiv.org/abs/hep-th/0205140
[19]
Benaoum, H.B. (2012) Modified Chaplygin Gas Cosmology. Advances in High Energy Physics, 2012, Article ID: 357802.
[20]
Diaz, G. and Pedro, F. (2003) You Need Not Be Afraid of Phantom Energy. Physical Review D, 68, Article ID: 021303 (R). http://dx.doi.org/10.1103/PhysRevD.68.021303
[21]
Rudra, P. (2013) Role of Generalized Cosmic Chaplygin Gas in Accelerating Universe: A Field Theoretical Prescription. Modern Physics Letters A, 28, Article ID: 1350102. http://dx.doi.org/10.1142/s0217732313501022
[22]
Chakraborty, W. and Debnath, U. (2007) Is Modified Chaplygin Gas with Barotropic Fluid Responsible for Acceleration of the Universe? Modern Physics Letters A, 22, 1805-1812. http://dx.doi.org/10.1142/S021773230702227X
[23]
Singh, J.K. and Rani, S. (2015) Modified Chaplygin Gas Cosmology with Statefinder Diagnostic in Lyra’s Geometry. Applied Mathematics and Computation, 259, 187-197. http://dx.doi.org/10.1016/j.amc.2015.02.055
![\"\"](\"Edit_51136f4f-8ec6-47d7-9ce4-083b08bcf3ba.bmp\")
？for ![\"\"](\"Edit_3512dc00-baea-464f-bba3-14a84c019f9f.bmp\")
？and the radiation era to quintessence model for ![\"\"](\"Edit_691fbc84-43c6-4186-9798-4a210a610c26.bmp\")
. The statefinder parameters describe the evolution of the universe in different phases for these two fluid models.
