as·tro·phys·ics /ˌæstrəˈfɪzɪks/
天體物理學
As·tro·phys·ics n. Astron. The science treating of the physical characteristics of the stars and other heavenly bodies, their chemical constitution, light, heat, atmospheres, etc. It is a branch of astronomy.
Note: ☞ Its observations were traditionally made with the spectroscope, bolometer, etc., usually in connection with the telescope. In modern times, radiotelescopes, infrared telescopes, X-ray and gamma ray detectors and neutrino detection equipment located deep underground are all put into service to observe and test theories about astronomical phenomena.
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astrophysics
n : the branch of astronomy concerned with the physical and
chemical properties of celestial bodies