The spectrum of a star can provide information of which one or more of the following?

Question

Quizplus · Accepted Answer

The spectrum of a star provides information about all of the above mentioned attributes. The temperature can be determined by analyzing the intensity of the radiation emitted at different wavelengths. The chemical composition of the star can be identified by analyzing the spectral lines present in the spectrum. The Doppler shift in the spectra can provide information about the star's relative motion towards or away from the observer, which can be used to determine important parameters like the star's radial velocity, rotation rate, and presence of any binary or planetary companions. The presence of magnetic fields can also be inferred from the polarization in the spectral lines. Hence, the spectrum of a star is a powerful tool for probing various physical properties of stars.

The Spectrum of a Star Can Provide Information of Which