PR and PL (PM_V) Relations for Classical Cepheids Revisited

Details PR and PL (PM_V) Relations for Classical Cepheids Revisited PR and PL (PM_V) Relations for Classical Cepheids Revisited

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009seraj.179..101s&link_type=abstract

Serbian Astronomical Journal, vol. 179, pp. 101-106

Statistics

Cepheids, Stars: Distances, Stars: Statistics

Scientific paper

Using observational data available for a large number of Galactic Cepheids, we determine the relation between the radius and the period of pulsations, by means of a variant of the Baade-Wesselink method. Using, further, the brightness parameter according to the Barnes-Evans approach, we achieve our final goal, determination of the relation between the period and the mean luminosity. The coefficients in both relations are realistic. We indicate the need for accurate angular diameters of the Cepheids, which would be useful since the Cepheids are standard candles in the cosmic distance scale.

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