120 citations · 378 across the 8 of their papers we have counts for
8 papers
Comprehensive Laboratory Measurements Resolving the LMM Dielectronic Recombination Satellite Lines in Ne-like Fe XVII Ions
Filipe Grilo, Chintan Shah, Steffen K"uhn +7
We investigated experimentally and theoretically dielectronic recombination (DR) populating doubly excited configurations (LMM) in Fe XVII, the strongest channel for soft X…
High-Precision Determination of Oxygen-K Transition Energy Excludes Incongruent Motion of Interstellar Oxygen
M. A. Leutenegger, S. Kühn, P. Micke +25
We demonstrate a widely applicable technique to absolutely calibrate the energy scale of x-ray spectra with experimentally well-known and accurately calculable transitions of highl…
Observation of strong two-electron--one-photon transitions in few-electron ion
Moto Togawa, Steffen Kühn, Chintan Shah +22
We resonantly excite the series of O and O up to principal quantum number with monochromatic x rays, producing -shell holes, and observe their relaxatio…
High Resolution Photoexcitation Measurements Exacerbate the Long-Standing Fe XVII Oscillator Strength Problem
Steffen Kühn, Chintan Shah, José R. Crespo López-Urrutia +29
For more than 40 years, most astrophysical observations and laboratory studies of two key soft x-ray diagnostic transitions, and , in Fe XVII ions found oscillator…
Extreme Ultraviolet Superfluorescence in Xenon and Krypton
L. Mercadier, A. Benediktovitch, C. Weninger +19
We present a comprehensive experimental and theoretical study on superfluorescence in the extreme ultraviolet wavelength regime. Focusing a high-intensity free-electron laser pulse…
Dawning of the N=32 shell closure seen through precision mass measurements of neutron-rich titanium isotopes
E. Leistenschneider, M. P. Reiter, S. Ayet San Andrés +42
A precision mass investigation of the neutron-rich titanium isotopes Ti was performed at TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN). The range of the measur…
Strong higher-order resonant contributions to x-ray line polarization in hot plasmas
Chintan Shah, Pedro Amaro, Rene Steinbrügge +6
We studied angular distributions of x rays emitted in resonant recombination of highly charged iron and krypton ions, resolving dielectronic, trielectronic, and quadruelectronic ch…
X-ray resonant photoexcitation: line widths and energies of Kα transitions in highly charged Fe ions
J. K. Rudolph, S. Bernitt, S. W. Epp +14
Photoabsorption by and fluorescence of the Kα transitions in highly charged iron ions are essential mechanisms for X-ray radiation transfer in astrophysical environments. We study…