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CH star

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This is an old revision of this page, as edited by Henrykus (talk | contribs) at 09:44, 19 September 2008 (moved CH stars to CH star). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

CH stars is a species of Carbon Stars who are characterized by the presence of exceedingly strong CH absorption bands in their spectra. They belong to the star population II, meaning they're metal poor and generally pretty middle-aged stars, and are underluminous compared to the classical C-N carbon stars. Many CH stars are known to be binaries, and it's reasonable to believe this is the case for all CH stars. Like Barium stars, they are probably the result of a mass transfer from a former classical carbon star, now a white dwarf, to the current CH-classed star.

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