Suspected cool R Coronae Borealis stars in the Magellanic Clouds

D. H. Morgan*, D. Hatzidimitriou, R. D. Cannon, B. F.W. Croke

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    Six stars out of a sample of ∼2300 carbon stars in the Magellanic Clouds have been identified as having strong C2 bands but CN bands that are very weak or absent. It is argued that five of these are likely to be R Coronae Borealis (RCB) stars on the basis of their spectral characteristics and peculiar colours. Most are variables and the Large Magellanic Cloud (LMC) members have extreme radial velocities that are more like the planetary nebula population than the carbon stars. This sample consists of four LMC members (only one of them previously recognized as an RCB star), one Small Magellanic Cloud (SMC) member (the first RCB star reported in the SMC) and one foreground Galactic star.

    Original languageEnglish
    Pages (from-to)325-335
    Number of pages11
    JournalMonthly Notices of the Royal Astronomical Society
    Volume344
    Issue number1
    DOIs
    Publication statusPublished - 1 Sept 2003

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