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October 20, 2000The Astrophysical JournalOpen Access

On the Absorption of X‐Rays in the Interstellar Medium

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Overview

Computational modeling demonstrates refined interstellar medium X-ray absorption cross sections above 100 eV, highlighting enhanced spectral analysis for high-resolution space missions.

Key Points

  • Develop an updated, physically comprehensive model for X-ray absorption in the interstellar medium at energies above 100 eV for modern high-resolution space observatories.
  • Incorporated revised interstellar medium chemical abundances and updated photoionization cross section calculations into an absorption framework.
  • Integrated explicit physical treatments for molecular hydrogen (H2) and interstellar dust grain absorption.
  • Constructed a dedicated computational subroutine to implement the absorption model directly into the XSPEC spectral analysis environment.
  • Delivered a detailed interstellar absorption model accounting for modern cross sections, molecular gas, and dust grains at energies ≳100 eV.
  • Provided an operational XSPEC analysis tool enabling precise spectral fitting and parameter estimation for high-resolution space observatories.

Cite This Study

A 2000 study studied this question.

synapsesocial.com/papers/6a7ca75e11282ab5d4ba4dfdhttps://doi.org/10.1086/317016
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