Transition probabilities for the UV0.01 multiplet in N III
(1995) In Astrophysical Journal 445(1). p.457-464- Abstract
- We report on large-scale ah initio multiconfiguration Hartree-Fock calculations for the UV0.01 multiplet, 2s(2)2p(2)P(J)-2s2p(2 4) P-J', in N III. The resulting transition probabilities agree very well with recent semiempirical calculations, and the lifetimes for two of the three upper levels agree with experiments. The deviation for the third level is discussed. Comparisons made with the highest quality IUE echelle spectra available-those of RR Tel and V1016 Cyg (both photoionized sources with electron densities below 10(8) cm(-3)-show that computed branching ratios of lines sharing a common upper level are in agreement with observations to within uncertainties of +/-10%. High-quality solar limb data or stellar data from the Hubble Space... (More)
- We report on large-scale ah initio multiconfiguration Hartree-Fock calculations for the UV0.01 multiplet, 2s(2)2p(2)P(J)-2s2p(2 4) P-J', in N III. The resulting transition probabilities agree very well with recent semiempirical calculations, and the lifetimes for two of the three upper levels agree with experiments. The deviation for the third level is discussed. Comparisons made with the highest quality IUE echelle spectra available-those of RR Tel and V1016 Cyg (both photoionized sources with electron densities below 10(8) cm(-3)-show that computed branching ratios of lines sharing a common upper level are in agreement with observations to within uncertainties of +/-10%. High-quality solar limb data or stellar data from the Hubble Space Telescope could, in principle, be used to determine whether the theoretical or measured lifetimes for the discrepant level are in error. Unfortunately, stellar data for high-density plasmas (N-e > 10(11) cm(-3) are needed) do not yet exist, and existing solar data lack the photometric precision to address this problem. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3918970
- author
- Brage, Tomas LU ; Fischer, CF and Judge, PG
- publishing date
- 1995
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- ATOMIC DATA, V1016 CYGNI), INDIVIDUAL (RR TELESCOPII, STARS, ULTRAVIOLET, GENERAL
- in
- Astrophysical Journal
- volume
- 445
- issue
- 1
- pages
- 457 - 464
- publisher
- American Astronomical Society
- external identifiers
-
- wos:A1995QY12900045
- scopus:11944249418
- ISSN
- 0004-637X
- DOI
- 10.1086/175710
- language
- English
- LU publication?
- no
- 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
- 32a77df2-69f7-483a-96bf-3497db9a2091 (old id 3918970)
- date added to LUP
- 2016-04-01 15:48:59
- date last changed
- 2021-01-03 04:01:07
@article{32a77df2-69f7-483a-96bf-3497db9a2091,
abstract = {{We report on large-scale ah initio multiconfiguration Hartree-Fock calculations for the UV0.01 multiplet, 2s(2)2p(2)P(J)-2s2p(2 4) P-J', in N III. The resulting transition probabilities agree very well with recent semiempirical calculations, and the lifetimes for two of the three upper levels agree with experiments. The deviation for the third level is discussed. Comparisons made with the highest quality IUE echelle spectra available-those of RR Tel and V1016 Cyg (both photoionized sources with electron densities below 10(8) cm(-3)-show that computed branching ratios of lines sharing a common upper level are in agreement with observations to within uncertainties of +/-10%. High-quality solar limb data or stellar data from the Hubble Space Telescope could, in principle, be used to determine whether the theoretical or measured lifetimes for the discrepant level are in error. Unfortunately, stellar data for high-density plasmas (N-e > 10(11) cm(-3) are needed) do not yet exist, and existing solar data lack the photometric precision to address this problem.}},
author = {{Brage, Tomas and Fischer, CF and Judge, PG}},
issn = {{0004-637X}},
keywords = {{ATOMIC DATA; V1016 CYGNI); INDIVIDUAL (RR TELESCOPII; STARS; ULTRAVIOLET; GENERAL}},
language = {{eng}},
number = {{1}},
pages = {{457--464}},
publisher = {{American Astronomical Society}},
series = {{Astrophysical Journal}},
title = {{Transition probabilities for the UV0.01 multiplet in N III}},
url = {{http://dx.doi.org/10.1086/175710}},
doi = {{10.1086/175710}},
volume = {{445}},
year = {{1995}},
}