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

http://arxiv.org/abs/1909.07432


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.

Read this paper on arXiv…

D. Wulf, M. Eckart, M. Galeazzi, et. al.
Wed, 18 Sep 19
47/64

Comments: 21 pages, 6 figures, accepted for publication in ApJ