The third spectrum of praseodymium in magnetic AP stars

Details The third spectrum of praseodymium in magnetic AP stars The third spectrum of praseodymium in magnetic AP stars

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...253..199m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 253, no. 1, Jan. 1992, p. 199-202.

Astronomy and Astrophysics

Astrophysics

26

A Stars, Magnetic Stars, Peculiar Stars, Praseodymium, Stellar Spectra, Chemical Fractionation, Line Spectra, Spectrum Analysis

Scientific paper

The identification of Pr III lines in the red spectrum of magnetic Ap stars, whose great strength contrasts with the weakness of the second spectrum of Pr in upper main-sequence, chemically peculiar stars, is presently reported. This identification is judged to be a critical step toward a knowledge of the abundance systematics of the lanthanides in chemically peculiar stars, as well as toward characterization of the chemical fractionation processes which they undergo.

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