A photometric and spectroscopic study of V567 Ophiuchi

Details A photometric and spectroscopic study of V567 Ophiuchi A photometric and spectroscopic study of V567 Ophiuchi

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102.1131p&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 102, Oct. 1990, p. 1131-1142. Research supported by NSF

Astronomy and Astrophysics

Astronomy

6

Cepheid Variables, Stellar Spectrophotometry, Dwarf Stars, Interstellar Extinction, Light Curve, Stellar Color, Stellar Oscillations

Scientific paper

New uvby-beta photometric observations of the dwarf Cepheid V567 Oph are presented. An improved period is found. Large errors in the calculated times of maximum light, variations in the light amplitude, variations in the light-curve width, and differences in the radial-velocity amplitude suggest that the object has a secondary overtone mode of pulsation. The star is found to be heavily reddened. Data indicate that the absolute magnitude is M(V) = +1.1m + or - 0.1m, the distance is 620 + or - 30 pc, and the mass is 1.85 + or - 0.2 solar masses.

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