Abstract Details

Name: Tejpreet Kaur
Affiliation: Panjab University, Chandigarh
Conference ID: ASI2017_1041
Authors and Co-Authors : Sandeep Sahijpal, Department of Physics, Panjab University, Chandigarh 160014
Abstract Type : Poster
Abstract Category : Stars,ISM and the Galaxy
Abstract : The galactic chemical evolution (GCE) deals with the origin and gradual growth of the isotopic abundance of the stable nuclides over the galactic time-scales of ~13 billion years from the stellar nucleosynthetic contributions of successive generations of stars. The nucleosynthetic inventories of the various elements increase the metallicity of the interstellar medium (ISM) in such a manner that it acquires a value of 0.014 at the time of formation of the solar system around ~4.56 Ga ago from an initial null value at the time of formation of Milky Way galaxy. The elemental as well as isotopic abundances evolution has been simulated for the galaxy. In order to develop the GCE models for galaxy, we incorporated the deduced accretion history of galaxy, the star formation rate (SFR), the stellar initial mass function (IMF), the supernovae rates, the stellar nucleosynthetic yields and the stellar evolutionary theories for different stellar masses and metallicities.