WELCOME

SUBRAHMANYAN CHANDRESEKHER( 1910-

1995)

EARLY LIFEBorn : October 19,1910

LahoreSon of C.Subrahmanyan

Ayyar and Sitalakshmi Balakrishnan.

Paternal uncle – Sir C.V.Raman(1888-1970)

Married Lalitha Doraiswamy – in September 1936.

EducationEarly education at home1922 : Hindu High School Triplicane India.1925 : Madras Presidency College1930 June passed Bachloer’s degree in

Physics.1930 :awarded a govt.of India for graduate

studies in Cambridge , England. 1933: completed Ph.D in Cambridge.

Chandrasekhar LimitIn 1930, he showed that there is a

maximum mass which can be supported against gravity by pressure made up of electrons and atomic nuclei . The value of this limit is about 1.44 times of solar mass .If the mass of a star exceeds the limit, the star would not become a white dwarf .The formulation of the Chandrasekhar limits led to the discovery of neutron stars and black holes. Depending on the mass there are 3 final stages of a star–white dwarf, neutron star & black hole . Chandrasekhar was awarded the Nobel Prize in Physics in 1983.

Subrhamanyan Chandrasekhar is best known for his discovery of Chandrasekhar Ltd.

Apart from Discovery of Chandrasekhar Ltd major work done by Subrahmanyan Chandrasekhar includes:

1.Stellar structure including the theory of white dwarf ( 1929-39)

2.Stellar dynamics, including the theory of Brownian Movement and motions(1938-43)

3. The theory of radioactive transfer, theory of illumination and polarisation, theory of planetary and stellar atomosphere,the quantum theory of negative ion of hydrogen(1943-50)

4. HYDRODYNAMIC AND HYDROMAGNECTIC STABILITY(1952-1961)

5. The equilbrium and stability of ellipsoidal figures of equilibrium (1961-68)6. The general theory of relativity and relativistic astrophysics (1962 -71)

7.Theory of black holes(1974-83)

NOBEL PRIZE Awarded Nobel prize in Physics in 1983. for his studies on the physical process important to the structure and evolution of stars. He accepted this honor, but was upset the citation mentioned only his earliest work, seeing it as a denigration of a life time’s achievement.

ANOTHER AWARDS

Fellow of royal society (1944), Hentry Norris Russel Lectureship 1949. , Bruce Medal 1962. , Padma Vibhushan (1968), Hentry Draper Medal of National Academy of Sciences (1971), Humboldt Prize.

DEATH

Chandrashekar Died of a Sudden Heart attack at University of Chikago Hospital in 1995.

1910-1995