Absolute dimensions and masses of IT cassiopeiae.

Details Absolute dimensions and masses of IT cassiopeiae. Absolute dimensions and masses of IT cassiopeiae.

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aj....114.1206l&link_type=abstract

The Astronomical Journal, v. 114, p. 1206.

Astronomy and Astrophysics

Astronomy

15

Binaries: Eclipsing, Stars: Individual: It Cas

Scientific paper

Accurate masses and radii have been determined from new spectroscopic and photometric observations and from previously published photometric observations and times of minima of this pair of F5 V stars. Previous reports of δ Scuti variations by the components appear to be erroneous. IT Cas has an eccentric orbit, but existing observations cover too small a fraction of the apsidal motion variations to fit an accurate apsidal period, which is estimated to be 2200 years based on theoretical models. These models give an age near 2 billion years for the binary star. There is a small amount of color excess due to interstellar reddening.

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