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arXiv · 1909.07432

A High Spectral Resolution Study of the Soft X-ray Background with the X-ray Quantum Calorimeter

Dallas Wulf·Megan E Eckart·Massimiliano Galeazzi·Felix Jaeckel·Richard L Kelley·Caroline A Kilbourne·Kelsey M Morgan·Dan McCammon·F Scott Porter·Andrew E Szymkowiak
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Abstract

We present here a combined analysis of four high spectral resolution observations of the Diffuse X-ray Background (DXRB), made using the University of Wisconsin-Madison/Goddard Space Flight Center X-ray Quantum Calorimeter (XQC) sounding rocket payload. The observed spectra support the existence of a $\sim0.1~$keV Local Hot Bubble and a $\sim0.2~$keV Hot Halo, with discrepancies between repeated observations compatible with expected contributions of time-variable emission from Solar Wind Charge Exchange (SWCX). An additional component of $\sim0.9~$keV emission observed only at low galactic latitudes can be consistently explained by unresolved dM stars.

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Dallas Wulf, Megan E Eckart, Massimiliano Galeazzi, Felix Jaeckel, Richard L Kelley, Caroline A Kilbourne, Kelsey M Morgan, Dan McCammon, F Scott Porter, Andrew E Szymkowiak. 2019-09-16. A High Spectral Resolution Study of the Soft X-ray Background with the X-ray Quantum Calorimeter. https://doi.org/10.3847/1538-4357%2Fab41f8

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