astro.wikisort.org - Researcher

Martin Schwarzschild (May 31, 1912 – April 10, 1997) was a German-American astrophysicist.

Martin Schwarzschild
Born	(1912-05-31)May 31, 1912 Potsdam, German Empire
Died	April 10, 1997(1997-04-10) (aged 84) Langhorne, Pennsylvania, United States
Nationality	German
Citizenship	German; American
Alma mater	University of Göttingen
Known for	Stellar structure and evolution
Awards	Newcomb Cleveland Prize (1957) Karl Schwarzschild Medal (1959) Henry Draper Medal (1960) Bruce Medal (1965) Brouwer Award (1992) Balzan Prize (1994) National Medal of Science (1997) Foreign Member of the Royal Society[1]
Scientific career
Fields	Physics Astronomy
Institutions	Columbia University[2] Princeton University
Doctoral students	Emilia Pisani Belserene

Biography

Schwarzschild was born in Potsdam into a distinguished German Jewish academic family. His father was the physicist Karl Schwarzschild and his uncle the astrophysicist Robert Emden. His sister, Agathe Thornton, became a classics scholar in New Zealand.

In line with a request in his father's will, his family moved to Göttingen in 1916. Schwarzschild studied at the University of Göttingen and took his doctoral examination in December 1936. He left Germany in 1936 for Norway and then the United States. Schwarzschild served in the US army intelligence. He was awarded the Legion of Merit and the Bronze Star for his wartime service. After returning to the US, he married fellow astronomer Barbara Cherry.[3] In 1947, Martin Schwarzschild joined his lifelong friend, Lyman Spitzer at Princeton University. Spitzer died 10 days before Schwarzschild.

Schwarzschild's work in the fields of stellar structure and stellar evolution led to improved understanding of pulsating stars, differential solar rotation, post-main sequence evolutionary tracks on the Hertzsprung-Russell diagram (including how stars become red giants), hydrogen shell sources, the helium flash, and the ages of star clusters. With Fred Hoyle, he computed some of the first stellar models to correctly ascend the red-giant branch by steadily burning hydrogen in a shell around the core.[4] He and Härm were the first to compute stellar models going through thermal pulses on the asymptotic giant branch[5] and later showed that these models develop convective zones between the helium- and hydrogen-burning shells,[6] which can bring nuclear ashes to the visible surface. Schwarzschild's 1958 book Structure and Evolution of the Stars[7] taught a generation of astrophysicists how to apply electronic computers to the computation of stellar models.

In the 1950s and ’60s he headed the Stratoscope projects, which took instrumented balloons to unprecedented heights. The first Stratoscope produced high resolution images of solar granules and sunspots, confirming the existence of convection in the solar atmosphere, and the second obtained infrared spectra of planets, red giant stars, and the nuclei of galaxies. In his later years he made significant contributions toward understanding the dynamics of elliptical galaxies. Schwarzschild was renowned as a teacher and held major leadership positions in several scientific societies.

In the 1980s, Schwarzschild applied his numerical skills to building models for triaxial galaxies. [8]

Schwarzschild was the Eugene Higgins Professor Emeritus of Astronomy at Princeton University, where he spent most of his professional life.[9]

Honors

Awards

• Karl Schwarzschild Medal (1959)
• Henry Norris Russell Lectureship (1960)[10]
• Henry Draper Medal of the National Academy of Sciences (1960)[11]
• Eddington Medal (1963)
• Bruce Medal (1965)[12]
• Rittenhouse Medal (1966)
• Gold Medal of the Royal Astronomical Society (1969)[13]
• Brouwer Award (1992)
• Balzan Prize (1994, with Fred Hoyle)
• National Medal of Science (1997)

Memberships

• American Academy of Arts and Sciences (1954)[14]
• United States National Academy of Sciences (1956)[15]
• American Philosophical Society (1981)[16]

Named after him

• Asteroid 4463 Marschwarzschild

See also

• Stratoscope
• Perhapsatron
• Betelgeuse
• Interchange instability

References

External links

• Published papers of Martin Schwarzschild on SAO/NASA Astrophysics Data System
• D. Merritt, Martin Schwarzschild's Contributions to Galaxy Dynamics
• Oral history interview with Martin Schwarzschild, 4 sessions, 1977. Niels Bohr Library, American Institute of Physics, College Park, MD.
• Oral history interview with Martin Schwarzschild, 1986. Charles Babbage Institute, University of Minnesota, Minneapolis.

На других языках

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[de] Martin Schwarzschild

Martin Schwarzschild (* 31. Mai 1912 in Potsdam; † 10. April 1997 in Langhorne, Pennsylvania) war ein US-amerikanischer Astrophysiker deutscher Herkunft.

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- [en] Martin Schwarzschild

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[es] Martin Schwarzschild

Martin Schwarzschild (31 de mayo de 1912 - 10 de abril de 1997) fue un astrónomo germano-estadounidense. Fue el hijo del famoso astrofísico Karl Schwarzschild y sobrino del astrofísico suizo Robert Emden.

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[fr] Martin Schwarzschild

Martin Schwarzschild (31 mai 1912 – 10 avril 1997) est un astronome germano-américain. Il est le fils de l'astrophysicien Karl Schwarzschild et de Else Posenbach, le frère de la philologue Agathe Thornton, et le neveu du météorologue et astrophysicien Robert Emden.

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[it] Martin Schwarzschild

Martin Schwarzschild (Potsdam, 31 maggio 1912 – Langhorne, 10 aprile 1997) è stato un astronomo tedesco naturalizzato statunitense, figlio di Karl Schwarzschild, si dedicò in particolar modo allo studio della struttura stellare e dell'evoluzione stellare.

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[ru] Шварцшильд, Мартин

Ма́ртин Шва́рцшильд (нем. Martin Schwarzschild; 1912—1997) — американский физик и астрофизик, педагог. Сын Карла Шварцшильда и племянник Роберта Эмдена.

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