Daulat Singh Kothari, Indian astrophysicist (Udaipur, Rajasthan 06 July 1906 – Udaipur, Rajasthan 21 February 1993)

ACHIEVEMENTS

Showed that atoms can be ionized by the application of pressure alone

First to appreciate the importance of pressure ionization and relative importance of conduction and radiation in transport of energy in stars

Proved that the size of a cold body could not exceed that of Jupiter

Showed that the energy flow in the degenerate stellar colors is mainly by the thermal conduction

Application of degenerate statistics to stellar matter. Mon. Not. Roy. Ast. Soc. 93:61-90, 1932

First to suggest neutrons in the interior of cold degenerate bodies by inverse beta decay

Neutrons, degeneracy and white dwarfs. Proc. Roy. Soc. A. 162:521-8, 1937

Derived a relation for the degree of ionization in the non-relativistic degenerate matter using virial theorem

The theory of pressure-ionization and its applications. Proc. Roy. Soc. A. 165:486-500, 1938

Determined the electrical and thermal conductivities of dense degenerate matter

Determined the energy generation in degenerate matter due to H-H reaction

Named non-degenerate radiation

With B.N. Singh. Bose-Einstein statistics and degeneracy. Proc. Roy. Soc. A. 178:135-52, 1941