| 词条 | Robert Kraft (astronomer) |
| 释义 |
|name = Robert Kraft |image = Kraft & Suntzeff 2005.jpg |image_size = 180px |caption = |birth_date = {{Birth date|1927|6|16|}} |birth_place = Seattle, Washington, U.S. |death_date = {{death date and age|2015|5|26|1927|6|16}} |death_place = Santa Cruz, California |residence = |citizenship = |nationality = United States |ethnicity = |field = |work_institutions = |alma_mater = University of Washington, University of California at Berkeley |doctoral_advisor = George Herbig |doctoral_students = |known_for = Kraft break |author_abbrev_bot = |author_abbrev_zoo = |influences = |influenced = |prizes = |religion = |footnotes = |signature = }}Robert Paul "Bob" 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] CareerKraft served as director of the Lick Observatory (1981–1991), president of the American Astronomical Society (1974–1976), and president of the International Astronomical Union (1997–2000).[3] He received his B.S. at the University of Washington in 1947, M.S. in mathematics at the University of Washington in 1949, and PhD from the University of California, Berkeley.[4] He died in 2015.[5] HonorsAwards
Named after him
References1. ^{{cite book|url=https://books.google.com/?id=vqTNfnKJVPAC&pg=PA426&dq=%22kraft,+robert+paul%22+1927#v=onepage&q=%22kraft%2C%20robert%20paul%22%201927&f=false|title=Biographical Encyclopedia of Scientists, Third Edition|work=google.ca|isbn=9781420072723|last1=Daintith|first1=John|date=2008-08-18}} 2. ^{{Citation | last1 = Kraft | first1 = R. P. | title = Studies of Stellar Rotation. V. The Dependence of Rotation on Age among Solar-Type Stars | year = 1967 | journal = Astrophysical Journal | volume = 150 | pages = 551| bibcode = 1967ApJ...150..551K | doi=10.1086/149359}} 3. ^{{cite web|url=http://news.ucsc.edu/2015/05/robert-kraft-obituary.html|title=Robert P. Kraft, eminent astronomer and former director of UC Observatories, dies at age 87|work=UC Santa Cruz News}} 4. ^{{cite journal |title=An Astronomical Life Salted by Pure Chance |journal=Annual Review of Astronomy and Astrophysics |date=2009 |doi=10.1146/annurev-astro-082708-101743 |bibcode = 2009ARA&A..47....1K |volume=47 |issue=1 |pages=1–26|last1=Kraft |first1=Robert P. }} 5. ^{{cite web|url=http://news.ucsc.edu/2015/05/robert-kraft-obituary.html|title=Robert P. Kraft, eminent astronomer and former director of UC Observatories, dies at age 87|work=UC Santa Cruz News|accessdate=2 June 2015}} 6. ^{{cite web | url = http://www.phys-astro.sonoma.edu/BruceMedalists/Kraft/index.html | title = The Bruce Medalists: Robert P. Kraft | accessdate=2010-02-01}} Further reading
External links
11 : 1927 births|2015 deaths|Members of the United States National Academy of Sciences|American astronomers|20th-century astronomers|21st-century astronomers|Scientists from Seattle|University of Washington alumni|University of California, Berkeley alumni|20th-century American scientists|21st-century American scientists |
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