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Multiperiodic pulsations in the Be stars NW Ser and V1446 Aql
J. Gutiérrez-Soto, J. Fabregat, J. Suso +7
Aims: We present accurate photometric time series of two Be stars: NW Ser and V1446 Aql. Both stars were observed at the Observatorio de Sierra Nevada (Granada) in July 2003 with a…
Fundamental Parameters of He-Weak and He-Strong Stars
L. S. Cidale, M. L. Arias, A. F. Torres +3
We carried out low resolution spectroscopic observations in the wavelength range 3400-4700 A of 20 He-weak and 8 He-strong stars to determine their fundamental parameters by means…
A Photometric Study of the Light Variations of the Triple System DG Leonis
P. Lampens, Y. Frémat, R. Garrido +8
Multi-site and multi-year differential photometry of the triple star DG Leo reveals a complex frequency spectrum that can be modelled as the combination of at least three Delta Scu…