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Pulsating stars in the open cluster NGC 1817

Published online by Cambridge University Press:  12 April 2016

T. Arentoft ,
L.M. Freyhammer ,
M.Y. Bouzid ,
C. Sterken  and
S. Frandsen
T. Arentoft
Affiliation:
Aarhus Universitet, Ny Munkegade, DK-8000 Aarhus C, Denmark Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
L.M. Freyhammer
Affiliation:
Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium Koninklijke Sterrenwacht, Ringlaan 3, B-1180 Brussels, Belgium
M.Y. Bouzid
Affiliation:
Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
C. Sterken
Affiliation:
Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
S. Frandsen
Affiliation:
Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium

Abstract

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We report on new CCD observations of the open cluster NGC 1817, obtained as part of a program to search for pulsating stars in clusters. In a previous study, several δ Sct stars were found in NGC 1817 and our observations confirm that NGC 1817 is a special cluster, as we detected 19 variable stars. Twelve of these are most likely δ Sct stars of which 11 seem to be cluster members. One is also an eclipsing binary.

Type
Part 4. Early-type stars: B, A and F pulsators
Information
International Astronomical Union Colloquium , Volume 193: Variable Stars in the Local Group , 2004 , pp. 242 - 246
Copyright
Copyright © Astronomical Society of the Pacific 2004

References

Balaguer-Núnez, L., Tian, K.P., Zhao, J.L. 1998, A&AS, 133, 387 Google Scholar
Breger, M. 2000, ASP Conf. Ser., Vol. 210, Delta Scuti and Related Stars, eds. Breger, M. & Montgomery, M., (San Francisco: ASP), 3 Google Scholar
Frandsen, S. 1992, Delta Scuti Star Newsletter (Univ. of Vienna), 5, 12 Google Scholar
Frandsen, S., Arentoft, T. 1998, A&A 333, 524 Google Scholar
Freyhammer, L.M., Arentoft, T., Sterken, C. 2001, A&A 368, 580 Google Scholar
Mermilliod, J.-C. 1995, in Information and On-Line Data in Astronomy, ed. Egret, D. & Albrecht, A. M., (Dordrecht: Kluwer), 127 Google Scholar