Back روبرت كرافت Arabic روبرت كرافت (عالم فلك من امريكا) ARZ Robert Paul Kraft German Ρόμπερτ Κραφτ (αστρονόμος) Greek Robert Kraft (astrónomo) Spanish Robert Paul Kraft French Robert Kraft (astronomo) Italian ロバート・クラフト (天文学者) Japanese Robert Paul Kraft LB Robert Kraft Portuguese
Robert Kraft | |
|---|---|
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| Born | June 16, 1927 Seattle, Washington, U.S. |
| Died | May 26, 2015 (aged 87) |
| Nationality | American |
| Alma mater | University of Washington, University of California at Berkeley |
| Known for | Kraft break |
| Scientific career | |
| Doctoral advisor | George Herbig |
Robert Paul Kraft (June 16, 1927 – May 26, 2015) was an American astronomer.[1] He performed pioneering work on Cepheid variables, stellar rotation, novae, and the chemical evolution of the Milky Way. His name is also associated with the Kraft break: the abrupt change in the average rotation rate of main sequence stars around spectral type F8.[2]
- ^ Daintith, John (2008-08-18). Biographical Encyclopedia of Scientists, Third Edition. CRC Press. ISBN 9781420072723.
{{cite book}}:|work=ignored (help) - ^ Kraft, R. P. (1967), "Studies of Stellar Rotation. V. The Dependence of Rotation on Age among Solar-Type Stars", Astrophysical Journal, 150: 551, Bibcode:1967ApJ...150..551K, doi:10.1086/149359