Chathuranga, M.D.M.; Amaradasa, H.D.S.; Mahanama, G.D.K.
(Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2018-02-15)
Properties of distant stars and galaxies such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements can be studied using their spectroscopy. ...