Subrahmanyan Chandrasekhar, FRS (/ˌtʃʌndrəˈʃeɪkər/; October 19, 1910 – August 21, 1995), was an Indian American astrophysicist born in Lahore, Punjab. Chandrasekhar was awarded, along with William A. Fowler, the 1983 Nobel Prize for Physics, with Chandrasekhar cited for his mathematical theory of the physical processes of importance to the structure and evolution of the stars.