Physics
Scientific paper
Feb 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ycat..61061120m&link_type=abstract
VizieR On-line Data Catalog: J/PASP/106/1120. Originally published in: 1994PASP..106.1120M
Physics
Stars: Variable, Photometry: Ubvrijklmnh
Scientific paper
This is the second paper in a series on large-amplitude delta Scuti stars intended to determine Baade-Wesselink radii and luminosities with precision. The first paper (Wilson et al., 1993PASP..105..809W) discussed our method of analysis and its application to EH Librae; in this we discuss the observations and analysis of DY Herculis. Optical and infrared photometry and cross-correlated radial-velocity data have been obtained and analyzed. Fourier representations for the UBVRIJHK light curves and for the radial-velocity curves were used to derive a value for the minimum radius for each of 60 combinations of flux and color index. From these we adopt a mean value for the minimum radius of Rmin=2.77+/-0.20R&sun;. When combined with effective temperatures from Breger et al. (1978PASP...90..754B), we find a mean bolometric luminosity of =21.70L&sun; and a mean absolute magnitude of
Fry David J. I.
Milone Eugene F.
Schiller Stephen J.
Wilson J. F. W.
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