Evidence of variable migration rate and a past direction reversal of the RS CVn wave-like distortion

Details Evidence of variable migration rate and a past direction reversal of the RS CVn wave-like distortion Evidence of variable migration rate and a past direction reversal of the RS CVn wave-like distortion

Feb 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...106..311b&link_type=abstract

Astronomy and Astrophysics, vol. 106, no. 2, Feb. 1982, p. 311-313. Consiglio Nazionale delle Ricerche

Astronomy and Astrophysics

Astrophysics

7

Binary Stars, Light Curve, Migration, Stellar Rotation, Stellar Spectrophotometry, Calcium, Data Acquisition, H Lines, K Lines, Stellar Models

Scientific paper

Recent and older photometric data on RS CVn are compared to give evidence of a systematically variable velocity and a past migration reversal of the wave-like distortion in the light curve. A possible scenario is presented, which is based on the spot-model by Eaton and Hall (1979), and offers a qualitative interpretation of the puzzling behavior of several RS CVn systems. The new observation-based characteristics and the possible scenarios are presented to stress the importance of collecting uninterrupted data on the migration and amplitude of photometric data.

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