Other
Scientific paper
Sep 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.258..415o&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 258, no. 2, Sept. 15, 1992, p. 415-438. Research suppor
Other
14
Light Curve, Stellar Rotation, Variable Stars, White Dwarf Stars, Fine Structure, Stellar Spectrophotometry
Scientific paper
Results of 300 hr of high-speed photometry of the pulsating DAV white dwarf BPM 31594 obtained during 1975-1979 are presented. The light curve exhibits nonsinusoidal pulses with a peak-to-peak range of 30 percent but with obvious modulation in amplitude and pulse shape. The mean amplitude spectrum shows that the dominant contributor to these oscillations is the principal frequency f = 1.62 mHz. Detailed frequency analysis shows that in most, but not all of the data, the frequency spectrum near f contains a rotationally split triplet along with another component very close by. Although the central component is present in all the data, the sidebands of the triplet are not always seen. The separation among the components of the triplet is 12.7 micro-Hz, implying a rotation period of about 0.9 d. The frequency of the central component is found to be stable on timescales of a few months or less; on longer timescales, significant variation which is not monotonic is found.
Cropper Mark
O'Donoghue Darragh
Warner Brian
No associations
LandOfFree
The pulsating DAV white dwarf BPM 31594 (VY Hor) - Evidence for non-linear mode coupling by direct resonance does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The pulsating DAV white dwarf BPM 31594 (VY Hor) - Evidence for non-linear mode coupling by direct resonance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The pulsating DAV white dwarf BPM 31594 (VY Hor) - Evidence for non-linear mode coupling by direct resonance will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1769668