Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apj...470l..73s&link_type=abstract
Astrophysical Journal Letters v.470, p.L73
Astronomy and Astrophysics
Astronomy
20
Atomic Data, Atomic Processes, Methods: Laboratory, X-Rays: General
Scientific paper
Recent ASCA spectra exhibit discrepancies with the relative line intensities of various Fe XXIII and XXIV L-shell emission lines predicted by standard plasma emission codes. To address this issue, we have carried out a series of high-resolution, broadband measurements of Fe XXIV line emission using an electron beam ion trap facility. X-ray lines produced in the trap are detected and resolved using Bragg crystal spectrometers. We report measurements of 3 --> 2 and 4 --> 2 transitions, which result primarily from electron impact excitation. Overall, good agreement is found with distorted wave calculations.
Beiersdorfer Peter
Decaux V.
Gullikson Eric M.
Kahn Steve M.
Liedahl Duane Allen
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