Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...210..303a&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 210, no. 1-2, Feb. 1989, p. 303-310.
Astronomy and Astrophysics
Astrophysics
14
Emission Spectra, Flare Stars, M Stars, Stellar Spectrophotometry, Autocorrelation, Error Analysis, Stellar Color, Stellar Envelopes, Stellar Oscillations, Ubv Spectra
Scientific paper
Periodograms of five-color photometric data are examined to search for ultrashort quasi-periodicities in V1285 Aquilae down to periods of about one minute. Statistically, the R- and I-band periods near four minutes occur at the 9.5 percent confidence level. Other suspected periods in V(9.0), R(1.6), and I(1.4 and 2.3 minutes) are also present above the 91 percent confidence level. Quasi-periodic trends in the noisier B band data are also suspected based on an alternative technique.
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