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L-shell dielectronic satellite transitions of Fe XVII

Journal Article · · Astrophysical Journal
 [1];  [2]; ;  [3]
  1. Physics Division, Lawrence Livermore National Laboratory, Livermore, CA 94550 (United States)
  2. Space Sciences Laboratory, University of California, Berkeley, CA 94720 (United States)
  3. Department of Chemistry and the Chemical Physics Program, University of Puerto Rico, San Juan, PR 00931 (United States)
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We have used the relativistic multi-reference Møller-Plesset perturbation theory to calculate the positions of the dielectronic satellite transitions involving doubly excited 3ℓ3ℓ' configurations that are associated with the X-ray spectrum of Fe XVII. A comparison of these positions with the wavelengths employed in astrophysical modeling codes shows discrepancies of up to 36 mÅ. Inspection of the spectrum of Capella recorded with the high energy transmission grating on the Chandra X-Ray Observatory reveals several features enhanced by Fe XVI lines formed by dielectronic recombination, one of which may be of future diagnostic use as it is fairly well isolated and in large part formed by dielectronic recombination.

OSTI ID:
22370576
Journal Information:
Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 2 Vol. 793; ISSN ASJOAB; ISSN 0004-637X
Country of Publication:
United States
Language:
English

References (12)

INVESTIGATION OF DIELECTRONIC RECOMBINATION SATELLITE EMISSION TO Fe XVIII FOR TEMPERATURE MEASUREMENTS OF STELLAR ATMOSPHERES journal January 2013
Capella Corona Revisited: A Combined View from XMM‐Newton RGS and Chandra HETGS and LETGS journal October 2006
Dielectronic Satellite Spectra for Highly-Charged Helium-Like Ion Lines journal October 1972
Laboratory Measurements and Identification of the Fe xviii – xxiv L‐Shell X‐Ray Line Emission journal June 2002
THEORETICAL WAVELENGTHS OF Fe XVI L-SHELL TRANSITIONS AND COMPARISON WITH LABORATORY MEASUREMENTS AND CHANDRA OBSERVATIONS OF CAPELLA journal January 2012
Dielectronic satellite spectra for neon-like ions journal January 1989
Measurement and interpretation of dielectronic recombination satellite line intensities journal March 1972
The Chandra Iron‐L X‐Ray Line Spectrum of Capella journal February 2001
MEASUREMENT AND MODELING OF Na-LIKE Fe XVI INNER-SHELL SATELLITES BETWEEN 14.5 Å AND 18 Å journal April 2009
Long Wavelength Satellites to the He-like Ion Resonance Lines in the Laboratory and in the Sun journal March 1969
Updated Atomic data and Calculations for X-Ray Spectroscopy journal August 2012
HIGH-ACCURACY MR-MP PERTURBATION THEORY ENERGY AND RADIATIVE RATES CALCULATIONS FOR CORE-EXCITED TRANSITIONS IN Fe XVI journal July 2013

Cited By (3)

Temperature Measurements Using the Dielectronic Satellite Lines of Fe xvii journal August 2018
Signatures of the non-Maxwellian κ -distributions in optically thin line spectra: II. Synthetic Fe XVII–XVIII X-ray coronal spectra and predictions for the Marshall Grazing-Incidence X-ray Spectrometer (MaGIXS) journal June 2019
Highly charged ions in magnetic fusion plasmas: research opportunities and diagnostic necessities journal May 2015

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L-Shell Dielectronic Satellite Transitions of Fe XVII
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THEORETICAL WAVELENGTHS OF Fe XVI L-SHELL TRANSITIONS AND COMPARISON WITH LABORATORY MEASUREMENTS AND CHANDRA OBSERVATIONS OF CAPELLA
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Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ASTROPHYSICS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CONFIGURATION
GAMMA RADIATION
IRON
L SHELL
PERTURBATION THEORY
POWER TRANSMISSION
RECOMBINATION
RELATIVISTIC RANGE
SATELLITES
SUN
WAVELENGTHS
X RADIATION
X-RAY SPECTRA