Discovery of the first carbon star in NGC 6822

Details Discovery of the first carbon star in NGC 6822 Discovery of the first carbon star in NGC 6822

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...277l...9a&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 277, Feb. 1, 1984, p. L9-L11.

Astronomy and Astrophysics

Astronomy

19

Carbon Stars, Local Group (Astronomy), Stellar Spectrophotometry, M Stars, Magellanic Clouds, Stellar Magnitude, Stellar Spectra

Scientific paper

A new photometric technique has been developed for detecting carbon and M stars in distant stellar systems, leading to isolation of carbon star candidates in a number of Local Group galaxies. One of the brighter candidates in NGC 6822 has been confirmed spectroscopically; at a distance of approximately 0.5 Mpc, it is the first truly extragalactic carbon star to be positively identified. The star has MI ≡ -5.7 mag, placing it near the upper luminosity end of known carbon stars in the Magellanic Clouds.

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