Meny

Javascript is not activated in your browser. This website needs javascript activated to work properly.
Du är här

Experimental Pd II oscillator strengths and the palladium abundance in the HgMn-type star chi Lupi

Författare:
Publiceringsår: 1996
Språk: Engelska
Sidor: 388-392
Publikation/Tidskrift/Serie: Astrophysical Journal
Volym: 469
Nummer: 1
Dokumenttyp: Artikel

Sammanfattning

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 19 lines, in addition to other Pd nr lines, are present in Hubble Space Telescope/Goddard High-Resolution Spectrograph echelle spectra of the chemically peculiar HgMn star chi Lupi, yielding a palladium abundance of log (N-Pd) = +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.

Disputation

Nyckelord

  • Physics and Astronomy

Övriga

Published
Yes
  • ISSN: 0004-637X

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen