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Inhalt:
Late-type stars are by far the most frequent stars in the universe and of fundamental interest to various fields of astronomy – most notably to Galactic archaeology and exoplanet research. However, such stars barely change during their main sequence lifetime; their temperature, luminosity, or chemical composition evolve only very slowly over the course of billions of years. As such, it is difficult to obtain the age of such a star, especially when it is isolated and no other indications (like cluster association) can be used. Gyrochronology offers a way to overcome this problem. Stars, just like all other objects in the universe, rotate and the rate at which stars rotate impacts many aspects of their appearance and evolution. Gyrochronology leverages the observed rotation rate of a late-type main sequence star and its systematic evolution to estimate their ages. Unlike the above-mentioned parameters, the rotation rate of a main sequence star changes drastically throughout its main sequence lifetime; stars spin down. The youngest ...
Anmerkung:
kumulative Dissertation
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Dissertation Universität Potsdam 2023
Weitere Ausg.:
Erscheint auch als Druck-Ausgabe Gruner, David New frontiers in gyrochronology Potsdam, 2023
Sprache:
Englisch
Schlagwort(e):
Hochschulschrift
DOI:
10.25932/publishup-61526
URN:
urn:nbn:de:kobv:517-opus4-615268
Mehr zum Autor:
Strassmeier, Klaus G. 1959-