paper

Direct Extragalactic Distance Determination Using X-Ray Scattering

arXiv:astro-ph/0407435 · doi:10.1086/425609

Abstract

We examine the feasibility of using dust-scattered X-rays for direct determination of distances to nearby galaxies with bright background AGNs, QSOs, or GRBs. We show how the Chandra X-Ray Observatory could be used to determine the distance to M31 to an unprecedented absolute accuracy of 1%.

submitted to ApJ. 31 pages, 9 figures

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