Two new short-period Cepheids

Details Two new short-period Cepheids Two new short-period Cepheids

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102..978s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 102, Sept. 1990, p. 978-980.

Astronomy and Astrophysics

Astronomy

4

Astronomical Photometry, Cepheid Variables, Astronomical Catalogs, Charge Coupled Devices, Fourier Series, Light Curve

Scientific paper

The General Catalogue of Variable Stars gives periods of slightly less than three-quarters of a day for the stars NO Cas and CN Tau. However, new photometry demonstrates that their periods are actually 2.6 and 1.8 days, respectively, and they are thus classical Cepheids. Fourier decompositions of their light curves are performed, and they are found to be members of a class of Cepheids with periods less than three days which may be related to the s-Cepheids. These two stars represent the shortest and longest known members of this class and thus are very useful in defining its properties in the Fourier diagrams.

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