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; F Scott Porter; Dan McCammon; Andrew E Szymkowiak

doi:10.3847/1538-4357/ab41f8

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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, F Scott Porter, Dan McCammon and Andrew E Szymkowiak

The Astrophysical journal, Vol.884(2), p.120

2019-10-17

DOI: https://doi.org/10.3847/1538-4357/ab41f8

Abstract

X-rays: ISM

X-rays: diffuse background

instrumentation: spectrographs

We present here a combined analysis of four high spectral resolution observations of the Diffuse X-ray Background, made using the University of Wisconsin-Madison/Goddard Space Flight Center X-ray Quantum Calorimeter sounding rocket payload. The observed spectra support the existence of a ∼0.1 keV Local Hot Bubble and a ∼0.2 keV Hot Halo, with discrepancies between repeated observations compatible with expected contributions of time-variable emission from Solar Wind Charge Exchange. An additional component of ∼0.9 keV emission observed only at low galactic latitudes can be consistently explained by unresolved dwarf M stars.

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 5 Physics; 5.20 Astronomy & Astrophysics; 5.20.102 Star Formation
Web Of Science research areas: Astronomy & Astrophysics
ESI research areas: Space Science

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Title: A High Spectral Resolution Study of the Soft X-Ray Background with the X-Ray Quantum Calorimeter
Creators: Dallas Wulf - University of Wisconsin at Madison , Madison, WI 53706, USA
Megan E Eckart - NASA/Goddard Space Flight Center , Greenbelt, MD 20771, USA
Massimiliano Galeazzi - University of Miami , Coral Gables, FL 33146, USA
Felix Jaeckel - University of Wisconsin at Madison , Madison, WI 53706, USA
Richard L Kelley - NASA/Goddard Space Flight Center , Greenbelt, MD 20771, USA
Caroline A Kilbourne - NASA/Goddard Space Flight Center , Greenbelt, MD 20771, USA
Kelsey M Morgan - University of Wisconsin at Madison , Madison, WI 53706, USA
F Scott Porter - NASA/Goddard Space Flight Center , Greenbelt, MD 20771, USA
Dan McCammon - University of Wisconsin at Madison , Madison, WI 53706, USA
Andrew E Szymkowiak - Yale University , New Haven, CT 06520, USA
Publication Details: The Astrophysical journal, Vol.884(2), p.120
Publisher: The American Astronomical Society
Number of pages: 10
Academic Unit: College of A&S; A&S - Physics
Language: English
Resource Type: Journal article
Record Identifier: 991031576459802976