Study of the variability of the Delta Scuti stars. II - Photometric observations of HR 5492

Details Study of the variability of the Delta Scuti stars. II - Photometric observations of HR 5492 Study of the variability of the Delta Scuti stars. II - Photometric observations of HR 5492

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ap%26ss..79..463b&link_type=abstract

Astrophysics and Space Science, vol. 79, no. 2, Oct. 1981, p. 463-468.

Astronomy and Astrophysics

Astrophysics

4

Electrophotometry, Stellar Spectrophotometry, Variable Stars, Amplitudes, Periodic Variations, Power Spectra, Vibration Mode

Scientific paper

Photoelectric observations of the suspected Delta-Scuti star HR 5492 are given. The present data do not show any light variation greater than 0.01 mag. In spite of the very small light variations, the data analysis shows the presence of two periodicities, which are statistically significant. While the longest period (1~296) cannot be justified with the present data, the shorter one (O~O44) is in excellent agreement with the hypothesis of an F4V star that is radially pulsating in the fundamental mode, even if this star is well outside the cold border of the instability strip

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