| Chushiro Hayashi Born: 25-Jul-1920
Birthplace: Kyoto, Japan
Died: 28-Feb-2010
Location of death: Kyoto, Japan
Cause of death: Pneumonia
Gender: Male
Race or Ethnicity: Asian
Occupation: Astronomer, Physicist Nationality: Japan
Executive summary: Big Bang astrophysicist Astrophysicist Chushiro Hayashi studied under Hideki Yukawa, and developed theories to explain several types of astronomical phenomena. He discovered what is now called the Hayashi track (the pattern followed by pre-main-sequence stars) and the Hayashi limit (the maximum radius for a star of a given mass). He showed that electron-positron pair production must be taken into account in considering the early neutron-proton ratio in the aftermath of the Big Bang, and he is also known for his advanced models showing star formation, stellar evolution, and pre-main sequence evolution. University: BS, University of Tokyo (1942)
University: PhD, Kyoto University (1954)
Teacher: Astrophysics, Osaka Prefecture University
Teacher: Astrophysics, Kyoto University (1945-54)
Professor: Astrophysics, Kyoto University (1954-84)
Bruce Medal 2004
Kyoto Prize 1995
Eddington Medal 1970
National Academy of Sciences Foreign Associate
Asteroid Namesake 12141 Chushayashi
Author of books:
Origin of the Solar System (1985, with Kiyoshi Nakazawa and Shoken M Miyama)
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