Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004apj...607.1039f&link_type=abstract
The Astrophysical Journal, Volume 607, Issue 2, pp. 1039-1045.
Astronomy and Astrophysics
Astronomy
5
Line: Identification, Sun: Corona, Sun: Uv Radiation
Scientific paper
Forbidden lines from transitions within the ground configuration of highly ionized atoms occupy an important role in diagnosing the properties of astrophysical plasmas. In this paper we report the identification of forbidden lines in the 500-1500 Å range from transitions within the ground configuration of highly ionized ions of the very low abundance phosphorus, chlorine, potassium, and cobalt recorded by SOHO SUMER. For the newly identified lines we provide upper level fractional populations multiplied by relevant spontaneous decay rates. Aided by the newly identified lines, the coronal composition of elements with photospheric abundances of 5×10-7-1×10-8 relative to hydrogen could be established.
Curdt Werner
Feldman Uri
Landi Enrico
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