Model for Astrophysical X-Ray Absorption Fine Structure

Journal Article · Tue Sep 01 04:00:00 EDT 1998 · Astrophysical Journal

DOI:https://doi.org/10.1086/306133· OSTI ID:303874

Forrey, R C; Woo, J W ^[1]; Cho, K ^[2]

---

1. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States)
2. Mechanics and Computation Division, Mechanical Engineering Department, Stanford University, Stanford, CA 94305-4040 (United States)

We present a theoretical model and database designed to provide analysis of astrophysical X-ray absorption fine structure (XAFS). The model includes spherical wave corrections and multiple-scattering contributions to the modification of the X-ray absorption coefficient. The model and database provide the basis for the astrophysical XAFS analysis (AXA) tool, which may be used to analyze properties of interstellar grains and molecules from high-resolution X-ray spectra expected to be observed by future satellite missions (e.g., the Advanced X-ray Astrophysics Facility). {copyright} {ital {copyright} 1998.} {ital The American Astronomical Society}

• OSTI ID: 303874
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 1 Vol. 505; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ABSORPTION SPECTRA
COSMIC DUST
ELECTRON DENSITY
FINE STRUCTURE
GALAXIES
INTERSTELLAR GRAINS
MATHEMATICAL MODELS
NUMERICAL ANALYSIS
X-RAY GALAXIES
X-RAY SPECTRA
X-RAY SPECTROSCOPY