Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005apj...625.1045l&link_type=abstract
The Astrophysical Journal, Volume 625, Issue 2, pp. 1045-1061.
Astronomy and Astrophysics
Astronomy
22
Line: Identification, Methods: Analytical, Methods: Laboratory, Stars: Coronae, Stars: Individual: Name: Procyon
Scientific paper
As part of a larger project to complete a comprehensive catalog of astrophysically relevant emission lines in support of new-generation X-ray observatories using the Lawrence Livermore electron beam ion traps EBIT-I and EBIT-II, we present observations of sulfur lines in the soft X-ray and extreme-ultraviolet regions. Our database includes wavelength measurements with standard errors, relative intensities, and line assignments for 127 transitions of S VII through S XIV between 20 and 75 Å. The experimental data are complemented with a full set of calculations using the Hebrew University Lawrence Livermore Atomic Code (HULLAC). A comparison of the laboratory data with Chandra measurements of Procyon allows us to identify S VII-S XI lines.
Behar Ehud
Beiersdorfer Peter
Kahn Steve M.
Lepson J. K.
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