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Louis G. Henyey

Louis George Henyey (February 3, 1910 – February 18, 1970) was an American astronomer.

His parents, Albert and Mary Henyey, were immigrants from Hungary. Louis George Henyey married Elizabeth Rose Belak, born in Budapest, on April 28, 1934; they had three children: Thomas Louis, Francis Stephen, and Elizabeth Maryrose.

Henyey-Greenstein phase function

His undergrad (1932) and masters (1933) were from the Case School of Applied Science.[1] In Yerkes Observatory of the University of Chicago he earned his doctorate in 1937, with a mathematical thesis on the topic of reflection nebulae. In 1947 he accepted a position as assistant professor in the Department of Astronomy at the University of California, Berkeley, and in 1954 he was promoted to professor. At Berkeley he became head of his own research group in the field of stellar evolution and supervised and collaborated with numerous graduate students, postdoctoral fellows, and scientific visitors. He died unexpectedly of a cerebral hemorrhage on February 18, 1970.

He is best known for his two major scientific contributions in the field of stellar structure and evolution. First, he developed a method for automatic solution of the equations of stellar evolution, suitable for electronic computers and applicable to a wide range of physical conditions and phases in the lifetime of a star. Second, he made new calculation of the evolution of stars during their early history when gravitational contraction provides the main energy source, and during the transition phase when nuclear energy takes over from the gravitational source. His work on the diffusion of the light in galaxies resulted in what is referred to as the Henyey-Greenstein phase function,[2][3] first proposed in a paper he authored.[4] This scattering model has found use in other scientific disciplines.[5]

The crater Henyey on the Moon is named after him, as is the asteroid called 1365 Henyey.[6]

References edit

  1. ^ Hockey, Thomas (2014). The Biographical Encyclopedia of Astronomers. Springer Publishing. ISBN 978-1-4419-9916-0. Retrieved August 22, 2012.
  2. ^ . Archived from the original on 2014-11-02.
  3. ^ "The Henyey-Greenstein phase function" (PDF).
  4. ^ Henyey, L. C.; Greenstein, J. L. (1941). "Diffuse radiation in the Galaxy". The Astrophysical Journal. 93: 70. Bibcode:1941ApJ....93...70H. doi:10.1086/144246.
  5. ^ "Scattering: The Henyey-Greenstein phase function".
  6. ^ . IAU: Minor Planet Center. Archived from the original on 9 April 2010. Retrieved March 7, 2010.

External links edit


louis, henyey, louis, george, henyey, february, 1910, february, 1970, american, astronomer, parents, albert, mary, henyey, were, immigrants, from, hungary, louis, george, henyey, married, elizabeth, rose, belak, born, budapest, april, 1934, they, three, childr. Louis George Henyey February 3 1910 February 18 1970 was an American astronomer His parents Albert and Mary Henyey were immigrants from Hungary Louis George Henyey married Elizabeth Rose Belak born in Budapest on April 28 1934 they had three children Thomas Louis Francis Stephen and Elizabeth Maryrose Henyey Greenstein phase functionHis undergrad 1932 and masters 1933 were from the Case School of Applied Science 1 In Yerkes Observatory of the University of Chicago he earned his doctorate in 1937 with a mathematical thesis on the topic of reflection nebulae In 1947 he accepted a position as assistant professor in the Department of Astronomy at the University of California Berkeley and in 1954 he was promoted to professor At Berkeley he became head of his own research group in the field of stellar evolution and supervised and collaborated with numerous graduate students postdoctoral fellows and scientific visitors He died unexpectedly of a cerebral hemorrhage on February 18 1970 He is best known for his two major scientific contributions in the field of stellar structure and evolution First he developed a method for automatic solution of the equations of stellar evolution suitable for electronic computers and applicable to a wide range of physical conditions and phases in the lifetime of a star Second he made new calculation of the evolution of stars during their early history when gravitational contraction provides the main energy source and during the transition phase when nuclear energy takes over from the gravitational source His work on the diffusion of the light in galaxies resulted in what is referred to as the Henyey Greenstein phase function 2 3 first proposed in a paper he authored 4 This scattering model has found use in other scientific disciplines 5 The crater Henyey on the Moon is named after him as is the asteroid called 1365 Henyey 6 References edit Hockey Thomas 2014 The Biographical Encyclopedia of Astronomers Springer Publishing ISBN 978 1 4419 9916 0 Retrieved August 22 2012 The Henyey Greenstein scattering function Archived from the original on 2014 11 02 The Henyey Greenstein phase function PDF Henyey L C Greenstein J L 1941 Diffuse radiation in the Galaxy The Astrophysical Journal 93 70 Bibcode 1941ApJ 93 70H doi 10 1086 144246 Scattering The Henyey Greenstein phase function Discovery Circumstances Numbered Minor Planets 1 5000 IAU Minor Planet Center Archived from the original on 9 April 2010 Retrieved March 7 2010 External links edithttp www nap edu readingroom books biomems lhenyey html nbsp nbsp nbsp This United States astronomer article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Louis G Henyey amp oldid 1168086468, wikipedia, wiki, book, books, library,

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