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Title: MEASUREMENT AND MODELING OF Na-LIKE Fe XVI INNER-SHELL SATELLITES BETWEEN 14.5 A AND 18 A

Journal Article · · Astrophysical Journal
 [1]; ; ;  [2]
  1. Physics Department, University of California-Davis, 1 Shields Avenue, Davis, CA 95616 (United States)
  2. University of California Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550 (United States)

We have used the University of California Lawrence Livermore National Laboratory's EBIT-I electron beam ion trap to perform measurements of the wavelengths and relative intensities of the X-ray lines from inner-shell satellite transitions in sodium-like Fe XVI. The measurements were carried out with high-resolution crystal and grating spectrometers and covered the 14.5-18 A wavelength band. In contrast to some predicted line strengths and positions found in the literature, our results show that the strongest relatively unblended inner-shell satellites of Fe XVI are located near 15.2 A. This is near the location of the 3d{yields} 2p intercombination line in Fe XVII. Calculations using the Flexible Atomic Code (FAC) are presented. The average deviation between the EBIT-I measurements and the FAC calculations for the wavelength positions and line ratios are 22 mA and a factor of 2.3, respectively, where the average is taken over the ten features included in this work.

OSTI ID:
21296252
Journal Information:
Astrophysical Journal, Vol. 695, Issue 2; Other Information: DOI: 10.1088/0004-637X/695/2/818; Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
Country of Publication:
United States
Language:
English