Bibcode
Saesen, S.; Pigulski, A.; Carrier, F.; Michalska, G.; Aerts, C.; De Ridder, J.; Briquet, M.; Handler, G.; Kołaczkowski, Z.; Acke, B.; Bauwens, E.; Beck, P. G.; Blom, Y.; Blommaert, J.; Broeders, E.; Cherix, M.; Davignon, G.; Debosscher, J.; Degroote, P.; Decin, L.; Dehaes, S.; De Meester, W.; Deroo, P.; Desmet, M.; Drummond, R.; Eggen, J. R.; Fu, J.; Gazeas, K.; Gelven, G. A.; Gielen, C.; Huygen, R.; Jiang, X.; Kalomeni, B.; Kim, S.-L.; Kim, D. H.; Kopacki, G.; Kwon, J.-H.; Ladjal, D.; Lee, C.-U.; Lee, Y.-J.; Lefever, K.; Leitner, A.; Lenz, P.; Liakos, A.; Lorenz, D.; Narwid, A.; Niarchos, P.; Østensen, R.; Poretti, E.; Prins, S.; Provencal, J.; Puga Antolín, E.; Puschnig, J.; Raskin, G.; Reed, M. D.; Reyniers, M.; Schmidt, E.; Schmitzberger, L.; Spano, M.; Steininger, B.; Stȩślicki, M.; Uytterhoeven, K.; Vanautgaerden, J.; Vandenbussche, B.; Van Helshoecht, V.; Vanhollebeke, E.; Van Winckel, H.; Verhoelst, T.; Vučković, M.; Waelkens, C.; Wolf, G. W.; Yakut, K.; Zhang, C.; Zima, W.
Bibliographical reference
Astronomische Nachrichten, Vol.331, Issue 9/10, p.1080-1083
Advertised on:
12
2010
Citations
10
Refereed citations
7
Description
As a result of the variability survey in χ Persei and NGC 6910, the
number of β Cep stars that are members of these two open clusters
is increased to twenty stars, nine in NGC 6910 and eleven in χ
Persei. We compare pulsational properties, in particular the frequency
spectra, of β Cep stars in both clusters and explain the
differences in terms of the global parameters of the clusters. We also
indicate that the more complicated pattern of the variability among
B-type stars in χ Persei is very likely caused by higher rotational
velocities of stars in this cluster. We conclude that the sample of
pulsating stars in the two open clusters constitutes a very good
starting point for the ensemble asteroseismology of β Cep-type
stars and maybe also for other B-type pulsators.