Multiple Close Frequencies and Mode Identification of HR 8851

Details Multiple Close Frequencies and Mode Identification of HR 8851 Multiple Close Frequencies and Mode Identification of HR 8851

Sep 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aj....110.1333h&link_type=abstract

Astronomical Journal v.110, p.1333

Astronomy and Astrophysics

Astronomy

2

Stars: Oscillations, Stars: Individual: Hr 8851

Scientific paper

A total of 156 hr of data in the V and B band were obtained in a two-site campaign which lasted 17 days in 1994 September-October. Frequency analysis was carried out carefully on these data and five frequencies,f1=3.617,f2=3.655, f3=4.286, f4=2.385, and f5=5.847 c/d are derived from both the V and B data. The variation behaviors in the U band also agree with these five frequencies. Mode identification shows that the first four frequencies can be best interpreted with the degeneracy of frequencies due to the star rotation. f1, f2, f3, and f4 are identified with m=-2, 1, -1, and 2. In addition, some interesting problems are discussed.

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