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Discrepancies between calculated and observed Fe XVII and Ni XIX solar coronal lines

Abstract

The 36-levels model atom Fe/sup +16/ of Loulergue and Nussbaumer (1973) is extended to a 51-levels atom including n=4 configuration. The earlier conclusion that relative intensities among the Fe XVII lines are not sufficiently sensitive to variations in electron densities and electron temperature to deduce these parameters from observed intensity ratios still holds. Discrepancies between calculated and observed relative intensities in Fe XVII and Ni XIX are attributed to blends or misidentifications.
Authors:
Loulergue, M; [1]  Nussbaumer, H [2] 
  1. Observatoire de Paris, Section de Meudon, 92 (France)
  2. Eidgenoessische Technische Hochschule, Zurich (Switzerland)
Publication Date:
Dec 01, 1975
Product Type:
Conference
Reference Number:
AIX-07-238729; EDB-77-015009
Resource Relation:
Journal Name: Astrophys. Space Sci.; (Netherlands); Journal Volume: 38:2; Conference: 27. I.A.U. colloquium on UV and X-ray spectroscopy of astrophysical and laboratory plasmas, Cambridge, Massachusetts, USA, 9 Sep 1974
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; SOLAR CORONA; SPECTRA; ELECTRON DENSITY; ELECTRON TEMPERATURE; EMISSIVITY; IRON IONS; MULTICHARGED IONS; NICKEL IONS; SUN; ATOMIC IONS; CHARGED PARTICLES; IONS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; STARS; SURFACE PROPERTIES; 640104* - Astrophysics & Cosmology- Solar Phenomena
OSTI ID:
7332158
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: APSSB
Submitting Site:
INIS
Size:
Pages: 365-368
Announcement Date:

Citation Formats

Loulergue, M, and Nussbaumer, H. Discrepancies between calculated and observed Fe XVII and Ni XIX solar coronal lines. Netherlands: N. p., 1975. Web.
Loulergue, M, & Nussbaumer, H. Discrepancies between calculated and observed Fe XVII and Ni XIX solar coronal lines. Netherlands.
Loulergue, M, and Nussbaumer, H. 1975. "Discrepancies between calculated and observed Fe XVII and Ni XIX solar coronal lines." Netherlands.
@misc{etde_7332158,
title = {Discrepancies between calculated and observed Fe XVII and Ni XIX solar coronal lines}
author = {Loulergue, M, and Nussbaumer, H}
abstractNote = {The 36-levels model atom Fe/sup +16/ of Loulergue and Nussbaumer (1973) is extended to a 51-levels atom including n=4 configuration. The earlier conclusion that relative intensities among the Fe XVII lines are not sufficiently sensitive to variations in electron densities and electron temperature to deduce these parameters from observed intensity ratios still holds. Discrepancies between calculated and observed relative intensities in Fe XVII and Ni XIX are attributed to blends or misidentifications.}
journal = {Astrophys. Space Sci.; (Netherlands)}
volume = {38:2}
place = {Netherlands}
year = {1975}
month = {Dec}
}