Light variations of the population II F-type supergiant HD 46703

Details Light variations of the population II F-type supergiant HD 46703 Light variations of the population II F-type supergiant HD 46703

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pasp...96..176b&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 96, Feb. 1984, p. 176-178. Research supported by the Do

Other

29

F Stars, Stellar Spectrophotometry, Supergiant Stars, Variable Stars, Asymptotic Giant Branch Stars, Brightness, Halos, Stellar Color, Stellar Evolution

Scientific paper

Photometric monitoring has revealed brightness variations of 0m.1 on a time scale of weeks for HD 46703, a metal-deficient F-type field analog of the stars lying above the horizontal branch in globular clusters. The authors suggest that HD 46703 belongs to the "89 Her" class of luminous F-type variables. Since HD 46703 is unquestionably a halo object, it is almost certainly a low-mass star. The authors suggest that it, and probably the other 89 Her variables, are masquerading as supergiants during their final evolution off the asymptotic giant branch.

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