Biography
Subrahmanyan Chandrasekhar was an Indian-American astrophysicist known for his groundbreaking work on stars and their evolution, which earned him the Nobel Prize in Physics in 1983. Born in Lahore in 1910, he made key discoveries about white dwarf stars, black holes, and star dynamics that changed modern astrophysics. His most famous discovery, the Chandrasekhar limit, defines the maximum mass a white dwarf star can have before it collapses into a neutron star or black hole. Chandrasekhar was educated at Hindu Higher Secondary School and Presidency College before studying further at Trinity College, University of Cambridge. His doctoral work under Arthur Eddington led to important insights into stellar evolution, though his theories initially faced skepticism. After his studies at Cambridge, he moved to the United States and spent most of his career at the University of Chicago, where he was a professor of theoretical astrophysics for many years. His marriage to Lalitha Doraiswamy in 1936 gave him lifelong companionship and support in his scientific work. Besides research, Chandrasekhar was an outstanding teacher who mentored many students and helped make the University of Chicago a top center for astrophysical research. His work covered various areas of theoretical physics including radiative transfer, stability in hydrodynamics and hydromagnetism, and the math behind black holes. He received many prestigious awards, including becoming a Royal Society fellow in 1944, receiving the Gold Medal of the Royal Astronomical Society in 1953, and the Copley Medal in 1984. Chandrasekhar continued his research well into his seventies and eighties before passing away in Chicago in 1995.
Before Fame
Chandrasekhar started his journey to scientific fame in colonial India, where he was born into a family known for its academic and scientific achievements. His uncle, C.V. Raman, who had gained international fame for his work in physics and would later win the Nobel Prize, exposed young Subrahmanyan to high-level scientific ideas early on. In the 1920s and 1930s, theoretical astrophysics was becoming its own area of study as scientists began using quantum mechanics and relativity theory to study stars. This period had rapid developments in atomic physics and quantum theory, allowing for more precise models of stellar interiors. This set the stage for Chandrasekhar's future breakthroughs in understanding stellar evolution.
Key Achievements
- Discovered the Chandrasekhar limit, the maximum mass a white dwarf star can sustain before gravitational collapse
- Developed fundamental theories of stellar structure and evolution that form the basis of modern stellar astrophysics
- Made groundbreaking contributions to the mathematical theory of black holes and gravitational collapse
- Received the Nobel Prize in Physics in 1983 for theoretical studies of physical processes in stellar structure and evolution
- Established the University of Chicago as a premier center for theoretical astrophysics through his teaching and research
Did You Know?
- 01.He calculated his famous mass limit for white dwarf stars during a voyage from India to England in 1930 when he was just 19 years old
- 02.Arthur Eddington, his doctoral supervisor, publicly ridiculed his white dwarf theory at a 1935 Royal Astronomical Society meeting, calling it 'stellar buffoonery'
- 03.The Chandra X-ray Observatory, launched by NASA in 1999, was named in his honor
- 04.He wrote several books on scientific subjects including works on radiative transfer, hydrodynamic stability, and the mathematical theory of black holes
- 05.Despite spending most of his career in the United States, he retained his Indian citizenship throughout his life
Family & Personal Life
Awards & Honors
| Award | Year | Details |
|---|---|---|
| Nobel Prize in Physics | 1983 | for his theoretical studies of the physical processes of importance to the structure and evolution of the stars |
| Fellow of the Royal Society | 1944 | — |
| Copley Medal | 1984 | — |
| Royal Medal | 1962 | — |
| Henry Draper Medal | 1971 | — |
| Henry Norris Russell Lectureship | 1949 | — |
| Gold Medal of the Royal Astronomical Society | 1953 | — |
| National Medal of Science | 1966 | — |
| Karl Schwarzschild Medal | 1986 | — |
| Bruce Medal | 1952 | — |
| Tomalla Foundation | 1981 | — |
| Josiah Willard Gibbs Lectureship | 1946 | — |