Cepheid radii and effective temperatures

Details Cepheid radii and effective temperatures Cepheid radii and effective temperatures

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.237..947f&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 237, April 15, 1989, p. 947-971.

Astronomy and Astrophysics

Astronomy

33

Astrometry, Cepheid Variables, Stellar Temperature, Ephemerides, Error Analysis, Infrared Photometry, Radial Velocity, Radii, Stellar Magnitude, Stellar Mass

Scientific paper

New infrared photometry for T Vul, Delta Cephei, and X Cyg is presented, and the infrared flux method is employed to determine effective temperatures and angular radii for theses objects at all phases of the pulsation cycle. The results confirm the steeper period-radius relation obtained for Cepheid variables by Moffet and Barnes (1980), and provide absolute magnitudes which are compatable with recent results for cluster Cepheids. The Wesselink masses determined from pulsation theory are shown to be significanty lower than evolution masses, particularly for the short-period stars.

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