Wesselink radii of 33 classical Cepheids

The radii of 33 classical cepheids are determined on the basis of the simultaneous radial velocity and photoelectric observation of 15 cepheids of Gieren (1981, 1982a). It is suggested that the best phase alignment between the light and the radial velocity curves in different epochs of 18 cepheids a...

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Bibliographic Details
Published in:Astrophysics and space science 1984-10, Vol.105 (2), p.369-372
Main Author: IVANOV, G. R
Format: Article
Language:English
Subjects:
Astronomy
Cepheids (delta cephei, w virginis)
Earth, ocean, space
Exact sciences and technology
Stars
Variable and peculiar stars (including novae)
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Summary:The radii of 33 classical cepheids are determined on the basis of the simultaneous radial velocity and photoelectric observation of 15 cepheids of Gieren (1981, 1982a). It is suggested that the best phase alignment between the light and the radial velocity curves in different epochs of 18 cepheids appears when the points of the phases at equal radius on the Delta V, Delta(B - V) diagram are transformed from a loop into a straight line. In such way, the radii of 18 cepheids have been determined.
ISSN:0004-640X
1572-946X
DOI:10.1007/BF00651090