121 citations · 498 across the 7 of their papers we have counts for
7 papers
Plasma code for astrophysical charge exchange emission at X-ray wavelengths
Liyi Gu, Jelle Kaastra, A. J. J. Raassen
Charge exchange X-ray emission provides unique insights into the interactions between cold and hot astrophysical plasmas. Besides its own profound science, this emission is also te…
A novel scenario for the possible X-ray line feature at ~3.5 keV: Charge exchange with bare sulfur ions
L. Gu, J. Kaastra, A. J. J. Raassen +4
Motivated by recent claims of a compelling ~3.5 keV emission line from nearby galaxies and galaxy clusters, we investigate a novel plasma model incorporating a charge exchange comp…
Calibration and in orbit performance of the reflection grating spectrometer onboard XMM-Newton
C. P. de Vries, J. W. den Herder, C. Gabriel +6
Context: XMM-Newton was launched on 10 December 1999 and has been operational since early 2000. One of the instruments onboard XMM-Newton is the reflection grating spectrometer (RG…
A Comprehensive X-ray Absorption Model for Atomic Oxygen
T. W. Gorczyca, M. A. Bautista, M. F. Hasoglu +9
An analytical formula is developed to represent accurately the photoabsorption cross section of O I for all energies of interest in X-ray spectral modeling. In the vicinity of the…
Time-dependent excitation and ionization modelling of absorption-line variability due to GRB 080310
P. M. Vreeswijk, C. Ledoux, A. J. J. Raassen +6
We model the time-variable absorption of FeII, FeIII, SiII, CII and CrII detected in UVES spectra of GRB 080310, with the afterglow radiation exciting and ionizing the interstellar…
High-resolution X-ray spectroscopy of Procyon by Chandra and XMM-Newton
A. J. J. Raassen, R. Mewe, M. Audard +6
We report the analysis of the high-resolution soft X-ray spectrum of the nearby F-type star Procyon in the wavelength range from 5 to 175 Angstrom obtained with the Low Energy Tran…