SIMBAD references

2021ApJ...913..140G - Astrophys. J., 913, 140-140 (2021/June-1)

Comprehensive laboratory measurements resolving the LMM dielectronic recombination satellite lines in Ne-like Fe XVII ions.

GRILO F., SHAH C., KUHN S., STEINBRUGGE R., FUJII K., MARQUES J., FENG GU M., SANTOS J.P., CRESPO LOPEZ-URRUTIA J.R. and AMARO P.

Abstract (from CDS):

We investigated experimentally and theoretically dielectronic recombination (DR) populating doubly excited configurations 3l3l (LMM) in Fe XVII, the strongest channel for soft X-ray line formation in this ubiquitous species. We used two different electron beam ion traps and two complementary measurement schemes for preparing the Fe XVII samples and evaluating their purity, observing negligible contamination effects. This allowed us to diagnose the electron density in both EBITs. We compared our experimental resonant energies and strengths with those of previous independent work at a storage ring as well as those of configuration interaction, multiconfiguration Dirac-Fock calculations, and many-body perturbation theory. This last approach showed outstanding predictive power in the comparison with the combined independent experimental results. From these we also inferred DR rate coefficients, unveiling discrepancies from those compiled in the OPEN-ADAS and AtomDB databases.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Laboratory astrophysics - Atomic physics - Experimental techniques - Theoretical techniques - Spectral line lists - Dielectronic recombination - Atomic data benchmarking

Simbad objects: 2

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