Hot ultrashort period Cepheid - A new type variable in globular cluster M15

Details Hot ultrashort period Cepheid - A new type variable in globular cluster M15 Hot ultrashort period Cepheid - A new type variable in globular cluster M15

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976acasn..17..157c&link_type=abstract

Acta Astronomica Sinica, vol. 17, Dec. 1976, p. 157-164. In Chinese, with abstract in English.

Astronomy and Astrophysics

Astronomy

Cepheid Variables, Globular Clusters, Hot Stars, Light Curve, Astronomical Catalogs, Color-Magnitude Diagram, Magnitude, Periodic Variations, Stellar Spectrophotometry

Scientific paper

The star No. 1082 in Kuestner Catalogue of M15 is a new type variable. Its period is 0.087004 and amplitude is about 0.2. It has a B-V color index +0.10. This makes its position on the color magnitude diagram go out of the hot border of delta Scuti stars. It is classified temporarily as a hot ultrashort-period Cepheid. The hot Cepheids may be a sub-type of the Population II ultrashort period Cepheids.

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