Changes in the chemical composition of stars due to atomic diffusion

• Grant number: 20/15801-2
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: March 01, 2021
• End date: December 31, 2021
• Field of knowledge: Physical Sciences and Mathematics - Astronomy - Stellar Astrophysics
• Principal Investigator: Jorge Luis Melendez Moreno
• Grantee: Nícolas Dick Vidal de Oliveira
• Host Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 18/04055-8 - High precision spectroscopy: from the first stars to planets, AP.TEM

Abstract

The aim of the project is to train the student in spectroscopic analysis techniques using solar-type stars. More specifically, the student will study solar analogue stars at the end of main sequence and at their evolution immediately afterwards, in other words, at the subgiant branch. The student will carry out the sample selection and will use public spectra of high spectral resolution, to determine the atmospheric parameters and chemical composition of the stars, and will study possible changes due to atomic diffusion.