LIFETIMES AND OSCILLATOR-STRENGTHS FOR Y-III

Authors
MANIAK ST CURTIS LJ THEODOSIOU CE HELLBORG R JOHANSSON SG MARTINSON I IRVING RE BEIDECK DJ
Citation
St. Maniak et al., LIFETIMES AND OSCILLATOR-STRENGTHS FOR Y-III, Astronomy and astrophysics, 286(3), 1994, pp. 978-982
Citations number
28
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
286
Issue
3
Year of publication
1994
Pages
978 - 982
Database
ISI
SICI code
0004-6361(1994)286:3<978:LAOFY>2.0.ZU;2-4
Abstract
Lifetime measurements, using beam-foil excitation, are reported for do ubly charged yttrium, Y III. The experimental data, for 4d - 5p, 5s - 5p, 5p - 6s and 5p - 5d transitions, are corroborated by new theoretic al calculations using the method of Coulomb Approximation with a Hartr ee-Slater model core (CAHS). The results provide information about Y I II transitions observed in HST spectra of Hg-Mn stars.