Chandra LETGS and XMM-Newton observations of NGC 4593

@article{Steenbrugge2003ChandraLA,
  title={Chandra LETGS and XMM-Newton observations of NGC 4593},
  author={Katrien C. Steenbrugge and Jelle S. Kaastra and Alexander J. Blustin and Graziella Branduardi‐Raymont and Masao Sako and Etienne Behar and Steven M. Kahn and Frits B. S. Paerels and Roland Walter},
  journal={Astronomy and Astrophysics},
  year={2003},
  volume={408},
  pages={921-928}
}
In this paper, we analyze spectra of the Seyfert 1 galaxy NGC 4593 obtained with the Chandra Low Energy Transmission Grating Spectrometer (LETGS), the Reflection Grating Spectrometer (RGS) and the European Photon Imaging Camera's (EPIC) onboard of XMM-Newton. The two observations were separated by7 months. In the LETGS spectrum we detect a highly ionized warm absorber corresponding to an ionization state of 400 10 9 W m, visible as a depression at 10 18 A. This depression is formed by multiple… 

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