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Title:
Interstellar photoelectric absorption cross sections, 0.03-10 keV
Authors:
Morrison, R.; McCammon, D.
Affiliation:
AA(Wisconsin, University, Madison, WI), AB(Wisconsin, University, Madison, WI)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 270, July 1, 1983, p. 119-122. (ApJ Homepage)
Publication Date:
07/1983
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Absorption Cross Sections, Cosmic Dust, Interstellar Chemistry, Interstellar Matter, X Ray Astronomy, Abundance, Electrophotometry, Ionization, Molecules
DOI:
10.1086/161102
Bibliographic Code:
1983ApJ...270..119M

Abstract

An effective absorption cross section per hydrogen atom has been calculated as a function of energy in the 0.03-10 keV range using the most recent atomic cross section and cosmic abundance data. Coefficients of a piecewise polynomial fit to the numerical results are given to allow convenient application in automated calculations.

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