- Chushiro Hayashi
-
Chūshirō Hayashi Born July 25, 1920 Died February 28, 2010 (aged 89)
Kyoto, JapanNationality Japan Fields astrophysics Institutions Kyoto University Alma mater University of Tokyo Influences Hideki Yukawa Notable awards Eddington Medal in 1970
Kyoto Prize in 1995
Bruce Medal in 2004Chushiro 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 led 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 (2): 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.; T. Nakano (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.
- ^ 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. http://www.japantoday.com/category/national/view/award-winning-japanese-astrophysicist-hayashi-dies-at-89. Retrieved March 1, 2010.
External links
Categories:- 1920 births
- 2010 deaths
- Japanese astronomers
- Kyoto University faculty
- University of Tokyo alumni
- Kyoto University alumni
- Members of the United States National Academy of Sciences
- Deaths from pneumonia
- Infectious disease deaths in Japan
- Recipients of the Order of Culture
- Laureates of the Imperial Prize
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