X-ray emission from stars in the cool half of the Hertzsprung-Russell diagram is generally
attributed to the presence of a magnetic corona that contains plasma at temperatures …

Non-degenerate stars of essentially all spectral classes are soft X-ray sources. Their X-ray
spectra have been important in constraining physical processes that heat plasma in stellar …

A comprehensive set of accurate atomic data is required for analyses of astrophysical and
solar spectra. CHIANTI provides a database of atomic energy levels, wavelengths, radiative …

Context. The current distribution of planet mass vs. incident stellar X-ray flux supports the
idea that photoevaporation of the atmosphere may take place in close-in planets. Integrated …

We have used the ASCA and ROSAT X-ray satellites to probe the coronae of a sample of
nine solar-like G stars. These stars are all ostensibly single with ages ranging from 70 Myr to …

Coronae on solar-like stars. ADS Classic is now deprecated. It will be completely retired in
October 2019. This page will automatically redirect to the new ADS interface at that point …

High-resolution spectra of the active binary Capella (G8 III+ G1 III) covering the energy
range of 0.4–8.0 keV (1.5–30 Å) show a large number of emission lines, demonstrating the …

We present the first X-ray spectrum obtained by the Low-Energy Transmission Grating
Spectrometer (LETGS) aboard the Chandra X-Ray Observatory. The spectrum is of Capella …

We review observational progress in the determination of element abundances in the solar
corona, largely due to the new capabilities offered by the instrumentation on the SOHO …

Spatial information from stellar X-ray coronae cannot be assessed directly, but scaling laws
from the solar corona make it possible to estimate sizes of stellar coronae from the physical …