ArticleEwing, Ian LeeWe present the detection of new cometary X-ray emission lines in the 1.0�2.0 keV range using a sample of comets observed with the Chandra X-Ray Observatory and ACIS spectrometer. We have selected five comets from the Chandra sample with good signal-to . . .
ThesisEwing, Ian LeeX-ray analysis of solar system objects lead to the discovery of X-rays from comets in the 1990's. With this discovery it was soon realized that of the variety of ways X-rays are produced, charge exchange is the dominant process at least in the X-ray p . . .