The discovery of x-ray emission from comet Hyakutake was surprising given that comets are
known to be cold. Observations by x-ray satellites such as the Röntgen Satellite (ROSAT) …

▪ Abstract Targeted laboratory astrophysics measurements are being conducted to address
the needs of X-ray astronomy. The measurements are producing large sets of reliable …

We present an XMM-Newton spectrum of diffuse X-ray emission from within the solar
system. The spectrum is dominated by probable C VI lines at 0.37 and 0.46 keV, an O VII …

In laboratory experiments using the engineering spare microcalorimeter detector from the
ASTRO-E satellite mission, we recorded the x-ray emission of highly charged ions of carbon …

Highly charged ions (HCIs) constitute a large class of atomic systems since each element
has as many ionization states as it has protons—in a sense, this extends the periodic table …

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 …

AXIS is a probe-class concept under study for submission to the 2020 Decadal survey. AXIS
will extend and enhance the science of high angular resolution x-ray imaging and …

During the last few years our knowledge about the X-ray emission from bodies within the
solar system has significantly improved. Several new solar system objects are now known to …

We have analyzed data from two sets of calibration observations of the Moon made by the
Chandra X-Ray Observatory. In addition to obtaining a spectrum of the bright side that …

Charge transfer, or charge exchange, describes a process in which an ion takes one or
more electrons from another atom. Investigations of this fundamental process have …