Multicolor Oservations of the Type II Cepheid Prototype W Virginis

Details Multicolor Oservations of the Type II Cepheid Prototype W Virginis Multicolor Oservations of the Type II Cepheid Prototype W Virginis

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20916222t&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #162.22; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

We present preliminary results of the AAVSO's six-month photometric campaign on the bright, pulsating variable star W Virginis, class prototype of the Type II Cepheid variables. This campaign was organized in support of separate spectroscopic observations (Wallerstein et al., in preparation), but these photometric data also stand alone as a valuable, recent, multicolor light curve of this object. Observations were obtained by several amateur and professional observers using a variety of equipment; data are primarily in the V filter, but include two complete pulsation cycles in the BVRcIc filters. We present lightand color-curves of this star, and compare our results to previous observational and theoretical results on W Vir and the Type II Cepheids.

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