Gustav Andreas Tammann

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Gustav Andreas Tammann , completely Gustav Alfred Andreas Tammann-Jundt (born July 24, 1932 in Göttingen ; † January 6, 2019 in Basel ) was a German astronomer .

Live and act

Tammann studied astronomy in Basel and Göttingen. During his student days he joined the Swiss Zofingerverein . In 1963 he went to the Mount Wilson and Palomar Observatory and began a longstanding collaboration with Allan Sandage .

In 1972 he became a professor at the University of Hamburg . From 1977 until his retirement he was professor and head of the Astronomical Institute at the University of Basel .

Tammann was particularly concerned with the cosmic distance scale, the Hubble constant , and related to it with cosmic distance indicators such as supernovae and Cepheids . Tammann and Sandage took values ​​of 50 to 60 for the Hubble constant in the 1990s, while a US school around de Vaucouleurs took values ​​of 80 to 100, supported in part by observations with the Hubble Space Telescope .

Gustav Andreas Tammann was also active in genealogy and religious orders . He was widowed and had two children. His father was the physician Heinrich Tammann , his grandfather the chemist Gustav Tammann .

Honors

literature

  • Eva Grebel, Friedrich-Karl Thielemann: Gustav Tammann-Jundt (July 24, 1932– January 6, 2019). In: Yearbook of the Heidelberg Academy of Sciences for the year 2019. Heidelberg 2020, pp. 212–215 ( online ).

Web links

Remarks

  1. Schweizerischer Zofingerverein, Schweizerischer Altzofingerverein (Ed.): List of Members 1997. Zofingen 1997, p. 26. (Available in the Swiss National Library , call number SWR 1338.)
  2. In an interview with Bild der Wissenschaft in 1996, Tammann advocated 55, which corresponds to an age of the universe of 18 billion years
  3. Genealogy and religious orders from www.tammann.ch, accessed on November 1, 2018
  4. ^ Gustav Andreas Tammann in the membership directory of the Heidelberg Academy of Sciences
  5. Minor Planet Circ. 43047