The nonradial mode identification of 53 Persei during late 1977 and 1978

Details The nonradial mode identification of 53 Persei during late 1977 and 1978 The nonradial mode identification of 53 Persei during late 1977 and 1978

Sep 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...232l.193s&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 232, Sept. 15, 1979, p. L193-L197.

Other

22

B Stars, Stellar Magnitude, Stellar Spectra, Variable Stars, Annual Variations, Astronomical Photography, Color Photography, Light Curve, Line Spectra, Modal Response, Stellar Luminosity, Stellar Spectrophotometry

Scientific paper

Various theoretical constraints are imposed on simultaneous light, color, and line profile observations to identify the surface indices of two nonradial modes present in the line profile variable B star 53 Persei during late 1977 and 1978. Excellent quantitative agreement between linear nonradial theory and the observations is reached for the modes l = 3, m = -2 and -3, but for no other modes. This unambiguous mode identification is made possible because of the fortunate circumstance that the light variations in this long-period pulsator are evidently due to geometric and not temperature effects.

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