David N. Burrows

TL;DR: In this article, the authors used the Swift X-RayTelescope (XRT) for 250,024s observations of the comet 9P/Tempel and found that the radial brightness distribution and X-ray spectrum were in good agreement with amodel of Xray production in which highlychargedminorheavyionspecies inthesolar windundergochargeexchangereactions withwatergrouporcarbondioxidegroup molecules.

TL;DR: In this article, the authors review relevant technological and programmatic issues, as well as possible approaches for addressing these issues, including active (in-space adjustable) alignment and figure correction.

TL;DR: In this paper, the performance of the AXAF CCD Imaging Spectrometer (ACIS) and the High-Resolution Mirror Assembly (HRMA) telescope were extensively calibrated at NASA MSFC's X-Ray Calibration Facility (XRCF).

TL;DR: Arcus, a Medium Explorer (MIDEX) mission, was selected by NASA for a Phase A study in August 2017 as mentioned in this paper, which provides high-resolution soft X-ray spectroscopy in the 12-50A bandpass with unprecedented sensitivity: effective areas of >450 cm^2 and spectral resolution >2500.

TL;DR: The Water Recovery X-ray Rocket (WRXR) is a sounding rocket payload that will launch from the Kwajalein Atoll in April 2018 and seeks to be the first astrophysics sounding satellite payload to be water recovered by NASA as mentioned in this paper.