Carbon stars in the Fornax dwarf spheroidal galaxy

Details Carbon stars in the Fornax dwarf spheroidal galaxy Carbon stars in the Fornax dwarf spheroidal galaxy

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...240..804a&link_type=abstract

Astrophysical Journal, Part 1, vol. 240, Sept. 15, 1980, p. 804-810.

Astronomy and Astrophysics

Astronomy

94

Carbon Stars, Infrared Astronomy, Star Distribution, Stellar Evolution, Stellar Spectrophotometry, Hertzsprung-Russell Diagram, Stellar Luminosity, Stellar Spectra

Scientific paper

The very red stars in the Fornax dwarf galaxy discovered by Demers and Kunkel (1980) were examined spectroscopically and in the infrared showing that for B - V greater than 2.1, the giant branch of Fornax may consist entirely of C stars. It is suggested that these stars can be produced only by an intermediate age population; a comparison of the fractional C-star light in Fornax and the Cloud globulars suggests that about 20% of Fornax is of intermediate age. Finally, a correlation is proposed between age spread in dwarf spheroidals and their total masses; Fornax appears to have retained longest the gas required for continued star formation.

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