On the existence of companions to L Carinae and its color excess

Details On the existence of companions to L Carinae and its color excess On the existence of companions to L Carinae and its color excess

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980aj.....85...62s&link_type=abstract

Astronomical Journal, vol. 85, Jan. 1980, p. 62, 63.

Other

4

B Stars, Cepheid Variables, Early Stars, H Beta Line, Stellar Spectrophotometry, Astrometry, Stellar Evolution, Stellar Luminosity, Stellar Motions

Scientific paper

Fernie suggested that nine early type stars in the vicinity of the 36 day Cepheid l Carinae might form a physical group. Four color and H-beta photometry was obtained to test this suggestion. The distances of these stars and their ages range widely indicating that all are field stars and cannot be used to estimate the distance of the Cepheid. The reddening in the field is discussed and it is concluded that l Car is considerably redder than other Cepheids of similar period and indicates that at high luminosity the Cepheid strip extends further to the red than has been supposed.

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