VJHK observations of the RR Lyrae star VY Serpentis

Details VJHK observations of the RR Lyrae star VY Serpentis VJHK observations of the RR Lyrae star VY Serpentis

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.216..873l&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 216, Oct. 15, 1985, p. 873-882.

Astronomy and Astrophysics

Astronomy

19

Astrometry, Cepheid Variables, Infrared Astronomy, Stellar Spectra, Light Curve, Metallicity, Radii, Stellar Color, Stellar Magnitude

Scientific paper

The authors present VJHK observations of the metal-poor field RR Lyrae star VY Serpentis. Using a variation of the Baade-Wesselink method they derive a radius of 5.80±0.19 R_sun; at minimum light. The use of infrared magnitudes and colours results in a consistent set of radius determinations. For a temperature at minimum light of 6000±150K then MV(min) = 0.90±0.12 mag and = 0.63±0.12 mag.

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