Indian Institute of Astrophysics (IIAP), Bangalore
About
The He/H ratio of the universe comes from the measurements made using B-type stars (hot stars). This ratio is assumed to be same across all stars, both hot and cool, for a fine abundance analysis. Nevertheless, the measurement of He/H ratio from the observed optical spectra of cool stars is not possible as they do not show any helium line transition. This project 's goal is to measure the He/H ratio, that is the helium abundance, in cool stars by adopting a novel technique.
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Professor
Indian Institute of Astrophysics (IIAP), Bangalore
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