7 papers
First XMM-Newton results on the Pulsar Wind Nebula in the composite supernova remnant G0.9+0.1
D. Porquet, A. Decourchelle, R. S. Warwick
We report the results of the XMM-Newton observation of the Pulsar Wind Nebula (PWN) in the composite supernova remnant G0.9+0.1 located in the Galactic Center region. Thanks to the…
X-ray powerful diagnostics for highly-ionized plasmas: He-like ions
D. Porquet, R. Mewe, J. S. Kaastra +2
The calculations of the ratios of the Helium-like ion X-ray lines from C V to Si XIII are revisited in order to apply the results to density, temperature and ionization process dia…
Helium-like ions as powerful X-ray plasma diagnostics
D. Porquet, R. Mewe, A. J. J Raassen +2
We revisited the calculations of the ratios of the Helium-like ion ``triplet'' (resonance, intercombination, and forbidden lines) for Z=6 to 14 (C V, N VI, O VII, Ne IX, Mg XI, Si…
Modelling of the X-ray broad absorption features in Narrow-Line Seyfert 1s
D. Porquet, M. Mouchet, A. -M. Dumont
We investigate the origin of the broad absorption features detected near 1-1.4 keV in several Narrow Line Seyfert 1 galaxies, by modelling the absorbing medium with various physica…
X-ray emitting-absorbing media in Seyfert 1 galaxies
M. Mouchet, A. Abrassart, D. Porquet +2
Seyfert galaxies have been shown to exhibit a large variety of features in their X-ray spectra from which the environment of the central engine can be deduced. We focus on the two…
X-ray plasma diagnostics for totally and partially photoionized plasmas such as Warm Absorber in AGN
Delphine Porquet, Jacques Dubau
Thanks to the new generation of X-ray satellites such as Chandra and XMM, high resolution and high sensitivity spectra are available. In particular, for the first time, the three m…