Abstract
view Abstract Citations (53) References (35) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The composition of Kapteyn's star and the M subdwarfs. Mould, J. R. Abstract The metal abundance of the nearby M subdwarf Kapteyn's star is obtained from a 10 A mm -1 spectrum in the near-infrared. The weighted mean value of [M/H] is - 0.55 + 0.15 (p.e.), confirming an earlier estimate from the strength of the TiO bands. The 0/C ratio in Kapteyn's star is within a factor of 2 of the solar value. The effect of pressure broadening in a cool subdwarf atmosphere is to strengthen the lines of the Ca ii infrared triplet relative to those of a mainsequence star of equal temperature. Subject headings: stars: abundances - stars: atmospheres - stars: individual - stars: late-type - stars: subdwarfs Publication: The Astrophysical Journal Pub Date: December 1976 DOI: 10.1086/154843 Bibcode: 1976ApJ...210..402M full text sources ADS | data products SIMBAD (31)
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