SX Phe Variables in Globular Clusters
نویسندگان
چکیده
منابع مشابه
Variable stars in the globular cluster NGC 3201. I. Multimode SX Phe-type variables
We report on the discovery of eleven multimode SX Phoenicis–type blue stragglers in the field of the southern globular cluster NGC 3201. In these variables both radial and non-radial modes are excited. For three variables the derived period ratio is close to that observed in SX Phoenicis itself, suggesting that these stars are pulsating in the fundamental and the first-overtone radial modes. Us...
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We present an analysis and interpretation of oscillation spectra for all 69 SX Phoenicis stars discovered in the field of the cluster. For most of the stars we have reliable absolute magnitudes and colors. Except of one, or perhaps two, objects, the stars are cluster members. Their pulsational behaviour is very diversified. Multiperi-odic variability with at least part of the excited modes bein...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 2002
ISSN: 0252-9211
DOI: 10.1017/s0252921100015803