X-Ray Scattering by Nonspherical Grains. I. Oblate Spheroids

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dc.creatorDraine, B. T.
dc.creatorAllaf-Akbari, Khosrow
dc.date2006-08-01
dc.date.accessioned2026-07-07T10:39:42Z
dc.date.available2026-07-07T10:39:42Z
dc.descriptionWe calculate the scattering of X-rays by interstellar dust, for a dust model that reproduces the observed wavelength-dependent extinction and polarization of starlight. On interstellar sightlines that produce appreciable starlight polarization, we predict that the dust-scattered X-ray halo around point sources will have measurable azimuthal asymmetry due to scattering by partially-aligned nonspherical grains. We calculate the expected halo asymmetry. X-ray halo asymmetry provides a new test of interstellar dust models.
dc.descriptionTo appear in The Astrophysical Journal
dc.identifierhttps://arxiv.org/abs/astro-ph/0608037
dc.identifierhttp://arxiv.org/abs/astro-ph/0608037
dc.identifierAstrophys.J.652:1318-1330,2006
dc.identifierdoi:10.1086/508133
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181119
dc.subjectAstrophysics
dc.titleX-Ray Scattering by Nonspherical Grains. I. Oblate Spheroids
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