Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apj...469..388l&link_type=abstract
Astrophysical Journal v.469, p.388
Astronomy and Astrophysics
Astronomy
14
Atomic Data, Line: Identification, Stars: Abundances, Stars: Individual Constellation Name: Chi Lupi, Ultraviolet: Stars
Scientific paper
Experimental oscillator strengths for 19 ultraviolet lines of Pd II have been derived from measurements of line intensities in calibrated Fourier transform spectra, combined with picosecond-pulse laser measurements of radiative lifetimes. Five of these t9 lines, in addition to other Pd II lines, are present in Hubble Space Telescope/Goddard High-Resolution Spectrograph echelle spectra of the chemically peculiar HgMn star χ Lupi, yielding a palladium abundance of log (NPd) = +5.0, which is 3.3 dex above the solar abundance. Theoretical oscillator strengths have been calculated for all strong ultraviolet transitions associated with the lowest odd-parity configuration of Pd II.
Johansson Sveneric G.
Larsson Joergen
Leckrone David S.
Litzén Ulf
Lundberg Hans
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