Inner‐Shell 1s–2pSoft X‐Ray Absorption Lines | Zendy

E. Behar | Zendy; H. Netzer | Zendy

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Inner‐Shell 1s–2pSoft X‐Ray Absorption Lines

Author(s) -

E. Behar,

H. Netzer

Publication year - 2002

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/339581

Subject(s) - neon , spectral line , atomic physics , ionization , physics , argon , line (geometry) , l shell , absorption spectroscopy , plasma , ion , galaxy , oscillator strength , absorption (acoustics) , astrophysics , optics , astronomy , nuclear physics , earth's magnetic field , geometry , mathematics , quantum mechanics , magnetic field

The HULLAC atomic code is used to compute wavelengths and oscillatorstrengths for the 1s - np inner-shell absorption lines in Li-like to F-likeions of neon, magnesium, aluminum, silicon, sulfur, argon, calcium, and iron.Many of these lines are expected to be observed in Chandra and XMM-Newtonhigh-resolution X-ray spectra of active galaxies. The new atomic data areincorporated in the ION code for spectral modeling of photoionized plasmas. Thecalculated spectra are subsequently compared with the spectrum of NGC 3783 andshow very good agreement. The usefulness of these lines as diagnostics for theionization state, column densities, and velocities in line-of-sightphotoionized gas is called attention to.Comment: Scheduled for the v570 n1 ApJ May 1, 2002 issu

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