The absolute magnitudes of RR Lyrae stars. III - DH Peg

Details The absolute magnitudes of RR Lyrae stars. III - DH Peg The absolute magnitudes of RR Lyrae stars. III - DH Peg

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.242..685f&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 242, Feb. 15, 1990, p. 685-691.

Astronomy and Astrophysics

Astronomy

20

Astronomical Photometry, Blue Stars, Giant Stars, Stellar Oscillations, Infrared Photometry, Light Curve, Ultraviolet Photometry, Visual Photometry

Scientific paper

UV optical and IR photometry of the RRc Lyrae star DH Peg is presented. Using this photometry plus previously published data the IR Flux Method of Blackwell & Shallis (1977) is applied to estimate effective temperatures and angular diameters at all phases of the pulsation cycle. The angular diameters are then matched with the integrated radial-velocity curve to give the radius and distance of the star. Mean values Te = 7070 + or - 210, r = 4.40 + or - 0.90 solar radii and Mv = 0.62 + or - 0.40 mag are found.

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