Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

L-Shell Dielectronic Satellite Transitions of Fe XVII

Journal Article · · The Astrophysical Journal (Online)
 [1];  [2];  [3];  [3]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Berkeley, CA (United States). Space Sciences Lab.
  2. Univ. of California, Berkeley, CA (United States). Space Sciences Lab.
  3. Univ. of Puerto Rico, San Juan, PR (United States)

In this work, 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.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); National Aeronautic and Space Administration (NASA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1809167
Alternate ID(s):
OSTI ID: 22370576
Report Number(s):
LLNL-JRNL--648129; 768422
Journal Information:
The Astrophysical Journal (Online), Journal Name: The Astrophysical Journal (Online) Journal Issue: 2 Vol. 793; ISSN 1538-4357
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English

References (12)

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

Cited By (3)


Similar Records

L-shell dielectronic satellite transitions of Fe XVII
Journal Article · Wed Oct 01 00:00:00 EDT 2014 · Astrophysical Journal · OSTI ID:22370576

Temperature Measurements Using the Dielectronic Satellite Lines of Fe xvii
Journal Article · Mon Aug 27 00:00:00 EDT 2018 · The Astrophysical Journal (Online) · OSTI ID:1583038

THEORETICAL WAVELENGTHS OF Fe XVI L-SHELL TRANSITIONS AND COMPARISON WITH LABORATORY MEASUREMENTS AND CHANDRA OBSERVATIONS OF CAPELLA
Journal Article · Tue Jan 31 23:00:00 EST 2012 · Astrophysical Journal · OSTI ID:22011871