Lifetime measurements for ground term transitions in TaII, WII, and ReII
(1999) In Astrophysical Journal 520(2). p.805-810- Abstract
- Lifetime measurements have been made for the radiation emitted in the ground term transitions of the nominal form 5s(2)5p(6)5d(x)6s-5s(2)5p(6)5d(x)6p in Ta II (x = 3), W II (x = 4), and Re II (x = 5). Supporting theoretical calculations have also been performed to characterize configuration interaction and to estimate the degree of decay branching of the upper levels. The lifetime measurements have been combined with these theoretical considerations and with branching fractions deduced from the emission measurements of Corliss & Bozman to specify the oscillator strengths of these transitions. The results are discussed in the context of spectroscopic data obtained from orbiting telescopes and applied to Hubble Space Telescope spectra to... (More)
- Lifetime measurements have been made for the radiation emitted in the ground term transitions of the nominal form 5s(2)5p(6)5d(x)6s-5s(2)5p(6)5d(x)6p in Ta II (x = 3), W II (x = 4), and Re II (x = 5). Supporting theoretical calculations have also been performed to characterize configuration interaction and to estimate the degree of decay branching of the upper levels. The lifetime measurements have been combined with these theoretical considerations and with branching fractions deduced from the emission measurements of Corliss & Bozman to specify the oscillator strengths of these transitions. The results are discussed in the context of spectroscopic data obtained from orbiting telescopes and applied to Hubble Space Telescope spectra to estimate the tungsten abundance in Sirius. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3919438
- author
- Henderson, M ; Irving, RE ; Matulioniene, R ; Curtis, LJ ; Ellis, DG ; Wahlgren, GM and Brage, Tomas LU
- organization
- publishing date
- 1999
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- ultraviolet : stars, stars : peculiar, Lupi), chi, stars : individual (Sirius B, atomic data, stars : abundances
- in
- Astrophysical Journal
- volume
- 520
- issue
- 2
- pages
- 805 - 810
- publisher
- American Astronomical Society
- external identifiers
-
- wos:000081540600040
- scopus:0033441041
- ISSN
- 0004-637X
- DOI
- 10.1086/307485
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Physics, science (011013100)
- id
- 1790a9b9-e12f-49c6-84c3-ce42191f0b18 (old id 3919438)
- date added to LUP
- 2016-04-01 16:13:28
- date last changed
- 2022-04-22 20:31:06
@article{1790a9b9-e12f-49c6-84c3-ce42191f0b18,
abstract = {{Lifetime measurements have been made for the radiation emitted in the ground term transitions of the nominal form 5s(2)5p(6)5d(x)6s-5s(2)5p(6)5d(x)6p in Ta II (x = 3), W II (x = 4), and Re II (x = 5). Supporting theoretical calculations have also been performed to characterize configuration interaction and to estimate the degree of decay branching of the upper levels. The lifetime measurements have been combined with these theoretical considerations and with branching fractions deduced from the emission measurements of Corliss & Bozman to specify the oscillator strengths of these transitions. The results are discussed in the context of spectroscopic data obtained from orbiting telescopes and applied to Hubble Space Telescope spectra to estimate the tungsten abundance in Sirius.}},
author = {{Henderson, M and Irving, RE and Matulioniene, R and Curtis, LJ and Ellis, DG and Wahlgren, GM and Brage, Tomas}},
issn = {{0004-637X}},
keywords = {{ultraviolet : stars; stars : peculiar; Lupi); chi; stars : individual (Sirius B; atomic data; stars : abundances}},
language = {{eng}},
number = {{2}},
pages = {{805--810}},
publisher = {{American Astronomical Society}},
series = {{Astrophysical Journal}},
title = {{Lifetime measurements for ground term transitions in TaII, WII, and ReII}},
url = {{http://dx.doi.org/10.1086/307485}},
doi = {{10.1086/307485}},
volume = {{520}},
year = {{1999}},
}