In this paper, we have investigated $Lambda$CDM type cosmological model in Heckmann-Schucking space-time, by using 287 high red shift ($ .3 leq z leq 1.4$ ) SN Ia data of observed absolute magnitude along with their possible error from Union 2.1 compilation. We have used $chi^{2}$ test to compare Union 2.1 compilation observed data and corresponding theoretical values of apparent magnitude $(m)$. It is found that the best fit value for $(Omega_{m})_0$, $(Omega_{Lambda})_0$ and $(Omega_{sigma})_0$ are $0.2940$, $0.7058$ and $0.0002$ respectively and the derived model represents the features of accelerating universe which is consistent with recent astrophysical observations.
تحميل البحث