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arXiv:astro-ph/0304283 (astro-ph)
[Submitted on 15 Apr 2003]

Title:The interstellar oxygen-K absorption edge as observed by XMM-Newton

Authors:C.P. de Vries, J.W. den Herder, J.S. Kaastra F.B. Paerels, A.J. den Boggende, A.P. Rasmussen
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Abstract: High resolution X-ray spectra of the Reflection Grating Spectrometer (RGS) on board the XMM satellite are used to resolve the oxygen K absorption edge. By combining spectra of low and high extinction sources, the observed absorption edge can be split in the true interstellar (ISM) extinction and the instrumental absorption. The detailed ISM edge structure closely follows the edge structure of neutral oxygen as derived by theoretical R-matrix calculations. However, the position of the theoretical edge requires a wavelength shift. In addition the detailed instrumental RGS absorption edge structure is presented. All results are verified by comparing to a subset of Chandra LETG-HRC observations.
Comments: LaTeX2e A&A style, 10 pages, 12 postscript figures, accepted for publication in Astronomy and Astrophysics
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/0304283
  (or arXiv:astro-ph/0304283v1 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/0304283
Journal reference: Astron.Astrophys. 404 (2003) 959-968
Related DOI: https://doi.org/10.1051/0004-6361%3A20030551

Submission history

From: Cor de Vries [view email]
[v1] Tue, 15 Apr 2003 14:11:34 UTC (345 KB)
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