W Virginis variable
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W Virginis variables are a subclass of Type II Cepheids which exhibit pulsation periods between 10–20 days,[1] and are of spectral class F6 – K2.[2][3]
They were first recognized as being distinct from classical Cepheids by Walter Baade in 1942, in a study of Cepheids in the Andromeda Galaxy that proposed that stars in that galaxy were of two populations.[4] The prototype is W Virginis.[1]
See also
[edit | edit source]References
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External links
[edit | edit source]- AAVSO Variable Star of the Month. W Virginis: Spring 2003 PDF / HTML
- OGLE Atlas of Variable Star Light Curves - W Virginis stars
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