Intensity Ratio of Density-sensitive Lines in Fe Ions Observed with a Well-defined Laboratory Plasma

Details Intensity Ratio of Density-sensitive Lines in Fe Ions Observed with a Well-defined Laboratory Plasma Intensity Ratio of Density-sensitive Lines in Fe Ions Observed with a Well-defined Laboratory Plasma

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011apj...739...17n&link_type=abstract

The Astrophysical Journal, Volume 739, Issue 1, article id. 17 (2011).

Astronomy and Astrophysics

Astronomy

Atomic Data, Atomic Processes, Line: Formation, Plasmas

Scientific paper

We present spectra of highly charged Fe ions in the extreme ultraviolet range observed using an electron beam ion trap equipped with a flat-field grazing incidence spectrometer. The density dependence of line intensity ratios is investigated for several density-sensitive lines of Fe XIII, XIV, and XV. Unlike previous studies where the electron density was estimated from theoretical considerations, here it is derived from electron beam profile measurements. The experimental data are compared with model calculations.

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