Umfang:
viii, 137 Seiten
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Illustrationen, Diagramme
Inhalt:
Angular momentum is a particularly sensitive probe into stellar evolution because it changes significantly over the main sequence life of a star. In this thesis, I focus on young main sequence stars of which some feature a rapid evolution in their rotation rates. This transition from fast to slow rotation is inadequately explored observationally and this work aims to provide insights into the properties and time scales but also investigates stellar rotation in young open clusters in general. I focus on the two open clusters NGC 2516 and NGC 3532 which are ~150 Myr (zero-age main sequence age) and ~300 Myr old, respectively. From 42 d-long time series photometry obtained at the Cerro Tololo Inter-American Observatory, I determine stellar rotation periods in both clusters. With accompanying low resolution spectroscopy, I measure radial velocities and chromospheric emission for NGC 3532, the former to establish a clean membership and the latter to probe the rotation-activity connection. The rotation period distribution derived for ...
Anmerkung:
kumulative Dissertation
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Dissertation Universität Potsdam 2021
Weitere Ausg.:
Erscheint auch als Online-Ausgabe Fritzewski, Dario Jasper From fast to slow rotation in the open clusters NGC 2516 and NGC 3532 Potsdam, 2021
Sprache:
Englisch
Schlagwort(e):
Hochschulschrift
Mehr zum Autor:
Strassmeier, Klaus G. 1959-