Aadil Aziz Bhat, Asif Iqbal, Aaqib ManzoorRather, Mohd Aarif Dar, Dr. Rajeev Kumar Singh
Stars, Galaxies, Evolution, Process, Homogenous
In this paper we are a presenting the formation of stars and evolution of galaxies. Red sequence galaxies are generally non-star-forming elliptical galaxies with little gas and dust, while blue cloud galaxies tend to be dusty star-forming spiral galaxies. Theories of galaxy evolution must therefore be able to explain how star formation turns off in galaxies.
The study of galaxy formation and evolution is concerned with the processes that formed a heterogeneous universe from a homogeneous beginning, the formation of the first galaxies, the way galaxies change over time, and the processes that have generated the variety of structures observed in nearby galaxies. Galaxy formation is hypothesized to occur from structure formation theories, as a result of tiny quantum fluctuations in the aftermath of the Big Bang. The simplest model in general agreement with observed phenomena is the Lambda-CDM model—that is, that clustering and merging allows galaxies to accumulate mass, determining both their shape and structure.