Subrahmanyan Chandrasekhar, Subrahmanyan Chandrasekhar Awards Subrahmanyan Chandrasekhar FRS PV 19 October 1910 – 21 August 1995. He was an American astrophysicist who spent his professional life in the United States. He received the Nobel Prize in physics in 1983 with William A. Fowler for “Theoretical studies on the physical processes important to the structure and evolution of the star”. His mathematical treatment of stellar evolution has provided many of the best theoretical models of successive evolutionary stages of massive stars and black holes. The boundary of Chandrasekhar, which brings its name.