Measuring Dust Properties from High Energy X-ray Halos
收藏ESA Earth Online2026-06-22 收录
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We propose observations with XMMNewton and NuSTAR of the bright, hard, andpersistent LMXB Z source GX13+1 to (1) measure the hard Xray halo between 27+keV and (2) to measure its spectrum and timing characteristics in the 550 keVband. With a broad energy range and multiple observatories, we will removestatistical and thus systematic uncertainties in the halo analysis, revealingthe size distribution of large grains along the line of sight.
