Scattering by Interstellar Dust Grains. II. X-Rays

@article{Draine2003ScatteringBI,
  title={Scattering by Interstellar Dust Grains. II. X-Rays},
  author={Bruce T. Draine},
  journal={The Astrophysical Journal},
  year={2003},
  volume={598},
  pages={1026-1037}
}
  • B. Draine
  • Published 14 August 2003
  • Physics
  • The Astrophysical Journal
Scattering and absorption of X-rays by interstellar dust is calculated for a model consisting of carbonaceous grains and amorphous silicate grains. The calculations employ realistic dielectric functions with structure near X-ray absorption edges, with resulting features in absorption, scattering, and extinction. Differential scattering cross sections are calculated for energies between 0.3 and 10 keV. The median scattering angle is given as a function of energy, and simple but accurate… 
Accurate Modeling of X-ray Extinction by Interstellar Grains
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To establish the nature of cometary X-ray emissions above 1 keV, detailed modeling of scattering and fluorescence of solar X-rays by a cometary atmosphere is carried out over the 0.3−3.0 keV photon
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The Dust-scattered X-Ray Halo around Swift GRB 050724
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References

SHOWING 1-10 OF 61 REFERENCES
SCATTERING BY INTERSTELLAR DUST GRAINS. I. OPTICAL AND ULTRAVIOLET
Scattering and absorption properties at optical and ultraviolet wavelengths are calculated for an interstellar dust model consisting of carbonaceous grains and amorphous silicate grains. Polarization
INTERSTELLAR DUST GRAINS
▪ Abstract This review surveys the observed properties of interstellar dust grains: the wavelength-dependent extinction of starlight, including absorption features, from UV to infrared; optical
The Scattered X-Ray Halo around Nova Cygni 1992: Testing a Model for Interstellar Dust
We use published ROSAT observations of the X-ray Nova V1974 Cygni 1992 to test a model for interstellar dust, consisting of a mixture of carbonaceous grains and silicate grains. The time-dependent
Infrared Emission from Interstellar Dust. II. The Diffuse Interstellar Medium
We present a quantitative model for the infrared emission from dust in the diffuse interstellar medium. The model consists of a mixture of amorphous silicate grains and carbonaceous grains, each with
EXAFS and XANES: New Astrophysical Tools to Study the Solid State Structure of Interstellar Grains
I show that new information about the compositions and crystal structures of interstellar grains can be derived from measurements of extended X-ray absorption fine structure (EXAFS) above the
Spectroscopic constraints on the properties of dust in active galactic nuclei
The optical properties of graphite, silicate, and SiC grains over the wavelength range 1000 microns - 1 A are calculated for grains in the 0.005-10-micron size range. Both graphite + silicate (MRN)
Interstellar X-Ray Absorption Spectroscopy of Oxygen, Neon, and Iron with the Chandra LETGS Spectrum of X0614+091
We —nd resolved interstellar O K, Ne K, and Fe L absorption spectra in the Chandra X-Ray Observatory Low-Energy Transmission Grating Spectrometer (LETGS) spectrum of the low-mass X-ray binary
Infrared Emission from Interstellar Dust. I. Stochastic Heating of Small Grains
We present a method for calculating the infrared emission from a population of dust grains heated by starlight, including very small grains for which stochastic heating by starlight photons results
The X-ray Halo of GX 13+1
We present observations of the X-ray halo around the LMXB GX 13+1 from the Chandra X-ray telescope. The halo is caused by scattering in interstellar dust grains, and we use it to diagnose the
ASCA measurements of the grain-scattered X-ray halos of eclipsing massive X-ray binaries: Vela X-1 and Centaurus X-3
We have measured the decaying dust-scattered X-ray halo of Cen X-3 during its binary eclipse with the ASCA solid-state imaging spectrometer (SIS). The surface brightness profile (SBP) of the image in
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