Title: Analysis of a delta Scuti spectroscopic binary: CQ Lyncis
Authors: Carrier, Fabien ×
Debernardi, Y
Udry, S
Carquillat, JM
Ginestet, N #
Issue Date: Aug-2002
Publisher: E d p sciences
Series Title: Astronomy & astrophysics vol:390 issue:3 pages:1027-1032
Abstract: CQ Lyn is a new double-lined spectroscopic binary, composed of an Am delta Scuti and a solar-like star, with an orbital period of 12.50736 d and a zero-eccentricity. Physical parameters of both stars are well constrained. The characteristics of the primary are the following: M = 1.714 M., T-eff = 6760 K, log L/L. = 1.097 and log g = 3.85 dex. Power spectra of Hipparcos photometry and Coravel radial velocities show multi-period pulsation behaviour. Three frequencies are identified. f(1) = 8.86725, f(2) = 8.81150 and f(3) = 8.91007 c/d and are assumed to be l = 2 f-modes split by rotation, considering their pulsation constants Q(1) = 0.0356, Q(2) = 0.0359 and Q(3) = 0.0355 d. Two combination oscillations are also present in the power spectrum at frequency f(1)+f(2) and f(2)+f(3).
ISSN: 0004-6361
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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