The search for delta Scuti stars in open clusters

Details The search for delta Scuti stars in open clusters The search for delta Scuti stars in open clusters

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...333..524f&link_type=abstract

Astronomy and Astrophysics, v.333, p.524-530 (1998)

Astronomy and Astrophysics

Astrophysics

17

Delta Scu, Stars: Evolution, Stars: Oscillations, Open Clusters And Associations: Individual

Scientific paper

In order to improve the tests of models of stellar evolution, observations giving tighter constraints on the models were initiated by the formation of an informal group STACC (Frandsen, 1992). The purpose of the group is to search for and make observations of delta Scuti stars in open clusters. This paper presents some of the results of the search, mainly for distant open clusters with a rich population of variables. Included is an announcement of a target list (Frandsen & Arentoft 1998, The Book) and four examples of new Colour-Magnitude (CM) diagrams of open clusters considered to be interesting targets. Finally, we present the fruits of extensive searching: an open cluster that contains many delta Scuti stars. Based on observations made at the European Southern Observatory, La Silla, the Nordic Optical Telescope, ORM, La Palma and the IAC80, OT, Tenerife

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