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Article
Open AccessThe Lunar Environment Heliophysics X-ray Imager (LEXI) Mission
The Lunar Environment heliospheric X-ray Imager (LEXI) is a wide field-of-view soft X-ray telescope developed to study solar wind-magnetosphere coupling. LEXI is part of the Blue Ghost 1 mission comprised of 1...
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Article
A disk-dominated and clumpy circumgalactic medium of the Milky Way seen in X-ray emission
The Milky Way galaxy is surrounded by a circumgalactic medium1 that may play a key role in galaxy evolution as the source of gas for star formation and a repository of metals and energy produced by star formation...
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Article
Solar wind charge exchange: an astrophysical nuisance
Solar wind charge-exchange (SWCX) emission is present in every X-ray observation of an astrophysical object. The emission is problematic when one cannot remove the foreground by the simultaneous measurement of...
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Article
Open AccessImaging Plasma Density Structures in the Soft X-Rays Generated by Solar Wind Charge Exchange with Neutrals
Both heliophysics and planetary physics seek to understand the complex nature of the solar wind’s interaction with solar system obstacles like Earth’s magnetosphere, the ionospheres of Venus and Mars, and come...
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Article
The origin of the local 1/4-keV X-ray flux in both charge exchange and a hot bubble
The contribution of solar-wind ions exchanging electrons with helium and hydrogen near the Sun is shown to be only about 40 per cent of the 1/4-keV X-ray flux observed in the Galactic plane; this supports the ...
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Article
Exception tests the rules
Detailed observations of an intermittent ultraluminous X-ray source indicate that its emission is unlikely to be powered by mass accretion onto an intermediate-mass black hole as previously thought. See Letter ...
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Chapter and Conference Paper
The Chandra View of M101: What Can We Learn About the Milky Way?
M101 is a nearby face-on spiral galaxy which can be used to study the hot ISM in the MilkyWay. We have used a deep Chandra image of M101 to characterize the X-ray emission. The X-ray emission follows the optical ...
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Chapter and Conference Paper
Small-scale 1/4keV fluctuations due to the local hot bubble
To determine fluctuations in the 1/4 keV emission due to the LHB, without contamination due to sources within the galactic disk, the Galactic halo or the extragalactic background, we have formed a mosaic of PS...