Non-radial oscillations in HR 1225, Omicron1 Eridani and HR 547

Details Non-radial oscillations in HR 1225, Omicron1 Eridani and HR 547 Non-radial oscillations in HR 1225, Omicron1 Eridani and HR 547

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...220..144p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 220, no. 1-2, Aug. 1989, p. 144-152.

Astronomy and Astrophysics

Astrophysics

12

Astronomical Photometry, Stellar Oscillations, Light Curve, Power Spectra

Scientific paper

An analysis of photoelectric measurements of HR 1255, Omicron Eri, and HR 547 obtained over a short time interval has confirmed the presence of a set of three frequencies in the light variations of these stars. Modal content data were obtained using the relationship between the period and the calculated pulsation constant. Values of 6.41 c/d, 10.26 c/d, and 8.98 c/d were found for HR 1225, with the first two terms being explained by nonradial pulsations and the third term being explained by a fundamental radial mode. For the case of Omicron1 Eri (13.38 c/d, 6.94 c/d, and 6.03 c/d) and HR 547 (11.06 c/d, 9.70 c/d, and 4.61 c/d), no radial mode was detected.

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