Chushiro Hayashi
Japanese astrophysicist (1920–2010) / From Wikipedia, the free encyclopedia
Chushiro Hayashi (林 忠四郎, Hayashi Chūshirō, July 25, 1920 – February 28, 2010) was a Japanese astrophysicist. Hayashi tracks on the Hertzsprung–Russell diagram are named after him.
Chūshirō Hayashi | |
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Born | (1920-07-25)July 25, 1920 Kyoto, Japan |
Died | February 28, 2010(2010-02-28) (aged 89) Kyoto, Japan |
Nationality | Japanese |
Alma mater | University of Tokyo |
Awards | Eddington Medal in 1970 Kyoto Prize in 1995 Bruce Medal in 2004 |
Scientific career | |
Fields | astrophysics |
Institutions | Kyoto University |
Doctoral advisor | Hideki Yukawa |
Doctoral students | Katsuhiko Sato |
Hayashi was born in Kyoto and enrolled at the Imperial University of Tokyo in 1940, earning his BSc in Physics after 2½ years, in 1942. He was conscripted into the navy[1] and, after the war ended, joined the group of Hideki Yukawa at Kyoto University. He was appointed a professor at Kyoto University in 1957.[1]
He made additions to the Big Bang nucleosynthesis model that built upon the work of the classic Alpher–Bethe–Gamow paper.[2] Probably his most famous work was the astrophysical calculations that led to the Hayashi tracks of star formation,[3] and the Hayashi limit that puts a limit on star radius. He was also involved in the early study of brown dwarfs, some of the smallest stars formed.[4]
He retired in 1984 and died from pneumonia at a Kyoto hospital on February 28, 2010.[5][6]