Multiple frequencies of the Delta Scuti variable 4 Canum Venaticorum

Details Multiple frequencies of the Delta Scuti variable 4 Canum Venaticorum Multiple frequencies of the Delta Scuti variable 4 Canum Venaticorum

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...231...56b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 231, no. 1, May 1990, p. 56-60. Research supported by the Chinese Academy of S

Astronomy and Astrophysics

Astrophysics

36

Frequency Stability, Pulsed Radiation, Stellar Oscillations, Stellar Radiation, Variable Stars, Astronomical Models, Astronomical Photometry, Stellar Activity

Scientific paper

Multiple photoelectric photometry of the Delta Scuti variable 4 Canum Venaticorum was obtained during 1983 and 1984, and five pulsation frequencies with visual amplitudes between 0.014 and 0.005 mag were found. The observed frequencies indicate nonradial pulsation with p1, p2, and p3 modes. The amplitudes of these frequencies were nearly constant in 1983 and 1984, in contrast to the pattern over 18 yrs.

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