Details

Autor(en) / Beteiligte

• Smith, R. A. N.
• Page, M. J.
• Branduardi-Raymont, G.

Titel

The XMM-Newton RGS spectrum of the high luminosity Seyfert 1 galaxy Markarian 509

Ist Teil von

• Astronomy and astrophysics (Berlin), 2007-01, Vol.461 (1), p.135-142

Ort / Verlag

Les Ulis: EDP Sciences

Erscheinungsjahr

2007

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• We present a detailed analysis of the soft X-ray spectrum of the Seyfert 1 galaxy Markarian 509 taken with the XMM-Newton Reflection Grating Spectrometer. An underlying power-law continuum and three warm absorber phases provide a good fit to the data along with a number of broad and narrow emission lines. Our three warm absorber phases each have different ionization parameters and column densities. We identify a low ionization, log $\xi=0.89$, high outflow velocity phase producing an Fe M-shell UTA feature along with absorption from O VI and N VI. There is an intermediate phase, log $\xi=2.14$, showing absorption from H-like carbon and nitrogen and He-like neon and oxygen. The third, high ionization, log $\xi=3.26$, low outflow velocity phase contains absorption from O VIII, Ne X and highly ionized iron. All phases are blueshifted with respect to the systemic velocity with flow velocities ranging from –60 km s-1 to –510 km s-1. The observed broad emission features have an rms velocity of $8000\pm 3000$ km s-1 for the C VI and OVII lines.