Microvariability and nonradial pulsations of the main-sequence star HD 21479

Details Microvariability and nonradial pulsations of the main-sequence star HD 21479 Microvariability and nonradial pulsations of the main-sequence star HD 21479

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980sval....6...96z&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 6, Mar. 1980, p. 175-178.) Soviet Astronomy Letters, vol. 6, Mar.-Apr. 1980, p. 96-98.

Astronomy and Astrophysics

Astronomy

1

Main Sequence Stars, Stellar Radiation, Stellar Spectrophotometry, Variable Stars, Light Curve, Power Spectra, Pulse Duration, Spherical Harmonics, Variability

Scientific paper

Photoelectric observations show that the light of the normal main-sequence star HD 21479 is microvariable. The fluctuations are polyharmonic, with periods ranging from 16 to 147 min. Individual harmonics can be identified with the gl1, f and p1-p4 nonradial pulsation modes of the star, as described by spherical harmonics of order l = 2.

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