One of the most enduring and intensively studied problems of x-ray astronomy is the
disagreement of state-of-the art theory and observations for the intensity ratio of two Fe XVII …

We measure the energy-differential cross sections for collisional excitation of the soft x-ray
electric-dipole K α (x+ y+ w) emission from He-like oxygen (O vii), using an electron beam …

We calculated cross sections for the dielectronic recombination (DR) satellite lines of Fe XVII
and benchmarked our predictions with experimental cross sections of Fe XVII resonances …

The angular distribution and the degree of linear polarization of the dielectronic
hypersatellite lines of highly charged helium-like ions are studied by using the …

We report measurements of hypersatellite radiation of argon ions in the electron energy
region of 5200 eV to 7500 eV. Here, we observed a strong enhancement of this …

We explore the dielectronic recombination structures at the electron beam ion trap at
Jagiellonian University in Cracow, emited by cerium that is produced by the high-current …

We improve eight-fold the energy accuracy of the strongest soft X-ray transitions of Fe XVII
ions by resonantly exciting them in an electron beam ion trap with a monochromatic beam at …

The total and magnetic sublevels cross sections both for the electron impact excitation (EIE)
of C-like Fe20+ ion from the ground state 1s22s22p2 3P0 to the K-shell excited states …

Procesy rekombinacyjne odgrywają kluczową rolę w zderzeniach elektronów z jonami.
Przebadanie i zrozumienie tych procesów umożliwia opracowanie teorii, która jest …

[en] Iron, the most abundant heavy element in the universe, is essential for spectroscopic
studies. X-ray astronomers use the emission lines from highly ionized iron states like Fe XVII …