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 …

We review X-ray plasma diagnostics based on the line ratios of He-like ions. Triplet/singlet
line intensities can be used to determine electronic temperature and density, and were first …

Abstract The Hot Universe Baryon Surveyor (HUBS) is a proposed space-based X-ray
telescope for detecting X-ray emissions from the hot gas content in our universe. With its …

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 …

Exocomets are small bodies releasing gas and dust which orbit stars other than the Sun.
Their existence was first inferred from the detection of variable absorption features in stellar …

The charge rearrangement in dissociating I 2 n+ molecules is measured as a function of the
internuclear distance R using extreme ultraviolet pulses delivered by the free-electron laser …

Charge exchange (CX) has emerged in X-ray emission modeling as a significant process
that must be considered in many astrophysical environments—particularly comets. Comets …

Charge exchange X-ray emission provides unique insight into the interactions between cold
and hot astrophysical plasmas. Besides its own profound science, this emission is also …

Relevant uncertainties of theoretical atomic data are vital to determining the accuracy of
plasma diagnostics in a number of areas, including, in particular, the astrophysical study. We …

Aims. We wished to analyse a sample of observations from the XMM-Newton Science
Archive to search for evidence of exospheric solar wind charge exchange (SWCX) emission …