(Extra) galactic stellar aggregates

Autor(en)

Martin Netopil, Ernst Paunzen, Hans Michael Maitzen

Abstrakt

The study of open clusters naturally introduces many advantages, because they are physically related groups of stars held together by mutual gravitational attraction that were formed at roughly the same time from one large cosmic gas and dust cloud. Their evolutionary stages range from clouds where star formation takes still place at this moment, to very old aggregates with turn-off points as late as solar type stars. Therefore, they represent samples of Population I stars of constant age and comparable intrinsic chemical composition, suited for the study of processes linked with stellar structure and evolution, and they fix lines or loci in several most important astrophysical diagrams.

Organisation(en)

Institut für Astrophysik

Journal

Contributions of the Astronomical Observatory Skalnaté Pleso

Band

38

Seiten

431-432

Anzahl der Seiten

2

ISSN

1335-1842

Publikationsdatum

2008

ÖFOS 2012

1030 Physik, Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/af28a8bc-1c88-4309-bdce-39d210da6778