Platinum in the magnetic sequence of chemically peculiar stars

Details Platinum in the magnetic sequence of chemically peculiar stars Platinum in the magnetic sequence of chemically peculiar stars

Apr 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...213..451c&link_type=abstract

Astrophysical Journal, Part 1, vol. 213, Apr. 15, 1977, p. 451-457.

Other

7

A Stars, Abundance, Line Spectra, Magnetic Stars, Peculiar Stars, Platinum, Stellar Spectra, Manganese, Metallic Stars, Stellar Spectrophotometry

Scientific paper

Platinum appears to be present in a number of magnetic Ap stars. It is weak or absent in others. A line-by-line examination of the observational data is made, with special emphasis given to the problem of line blending. Preliminary abundance estimates, based upon an educated guess for the gf-value of the Pt II line at 4046 A, yield excesses for platinum ranging up to five orders of magnitude. No obvious temperature dependence of the platinum abundance has been found, but the sample of stars studied is still too small to establish the presence or absence of such a trend with any degree of confidence.

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