Chushiro Hayashi
Chūshirō Hayashi | |
---|---|
Born | July 25, 1920 |
Died | February 28, 2010 Kyoto, Japan | (aged 89)
Nationality | Japan |
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 |
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.
He earned his B.Sc in physics at the Imperial University of Tokyo in 1942. He then worked as a research associate under Hideki Yukawa at Kyoto University. He made additions to the big bang nucleosynthesis model that built upon the work of the classic Alpher-Bethe-Gamow paper.[1] Probably his most famous work was the astrophysical calculations that lead to the Hayashi tracks of star formation,[2] 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.[3] He retired in 1984.
He won the Eddington Medal in 1970, the Kyoto Prize in 1995, and the Bruce Medal in 2004.
Chushiro Hayashi died from pneumonia at a Kyoto hospital on February 28, 2010.[4][5]
References
- ^ Hayashi, C. (1961). "Proton-neutron concentration ratio in the expanding Universe at the stages preceding the formation of the elements". Progress of Theoretical Physics (Japan). 5: 224–235. doi:10.1143/PTP.5.224.
- ^ Hayashi, C. (1961). "Stellar evolution in early phases of gravitational contraction". Publ. Astron. Soc. Jap. 13: 450–452.
- ^ Hayashi, C. (1963). "Evolution of Stars of Small Masses in the Pre-Main-Sequence Stages". Progress of Theoretical Physics. 30 (4): 460–474. doi:10.1143/PTP.30.460.
{{cite journal}}
: Unknown parameter|coauthors=
ignored (|author=
suggested) (help) - ^ Sugimoto, D. (2010). "Chushiro Hayashi 1920–2010". Astronomy & Geophysics. 51 (3): 3.36. doi:10.1111/j.1468-4004.2010.51336.x.
- ^ "Award-winning Japanese astrophysicist Hayashi dies at 89". Kyodo News. March 1, 2010. Retrieved March 1, 2010.