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X-ray absorption via Kα resonance complexes in oxygen ions.
- Source :
-
Monthly Notices of the Royal Astronomical Society . 6/1/2003, Vol. 341 Issue 4, p1268-1271. 4p. - Publication Year :
- 2003
-
Abstract
- ABSTRACT The Kα resonance complexes in oxygen ions O i–O viare theoretically computed, and resonance oscillator strengths and wavelengths are presented. The highly resolved photoionization cross-sections, with relativistic fine structure, are computed in the coupled channel approximation using the Breit–Pauli R-matrix method. A number of strong Kα resonances are found to be appreciable, with resonance oscillator strengths f[sub r] > 0.1 . The Kα resonance wavelengths of O i–O vilie in the relatively narrow wavelength range 22–23.5 Å, and the X-ray opacity in this region should therefore be significantly affected by K → L transitions in oxygen. The results should be useful in the interpretation of soft X-ray spectra observed from Chandra and XMM–Newton. [ABSTRACT FROM AUTHOR]
- Subjects :
- *X-rays
*ATOMIC absorption spectroscopy
*GALAXIES
Subjects
Details
- Language :
- English
- ISSN :
- 00358711
- Volume :
- 341
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Monthly Notices of the Royal Astronomical Society
- Publication Type :
- Academic Journal
- Accession number :
- 9852205
- Full Text :
- https://doi.org/10.1046/j.1365-8711.2003.06513.x