An accretion disc origin for the `X-ray broad line region' in 1H0707-495

Abstract

We use a 380 ks XMM-Newton high-resolution RGS spectrum to look for narrow spectral features from the nuclear environment of 1H0707-495. We do not find any evidence of a line-of-sight ionized wind (warm absorber). We do, however, detect broad emission lines, of width ~5000 km s^-1, consistent with O VIII Ly-alpha, N VII Ly-alpha, C VI Ly-alpha and a Fe XIX/Fe XX/Ne IX He-alpha blend. Intriguingly, these lines have both blueshifted and redshifted components, whose velocity shifts are consistent with an origin in an accretion disc at ~1600 R_g from the black hole. The features can be interpreted as the narrow line cores of the disc reflection spectrum, thus providing independent support for the discline interpretation of the X-ray spectrum of 1H0707-495. We discuss the relevance of our findings for the `X-ray broad line region' in other Seyferts, and for the origins of the optical broad line region itself.

5 pages, 4 figures, accepted by MNRAS Letters

References in corpus (3)

• On the origin of the Fe K-alpha line cores in Active Galactic Nuclei
• The Seyfert 1 Galaxy Mrk 335 at a very low flux state: mapping the soft X-ray photoionised gas
• The XMM-Newton RGS spectrum of the high luminosity Seyfert 1 galaxy Markarian 509

Cited by in corpus (15)

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• Spectral Analysis of 1H0707-495 with XMM-Newton
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• Relativistic disc reflection in the extreme NLS1 IRAS13224-3809
• A reflection origin for the soft and hard X-ray excess of Ark 120
• XMM-Newton Survey of Local O VII Absorption Lines in the Spectra of Active Galactic Nuclei
• Caught in the act: Measuring the changes in the corona that cause the extreme variability of 1H 0707-495
• The Compton hump and variable blue wing in the extreme low-flux NuSTAR observations of 1H0707-495
• A stratified ultrafast outflow in 1H0707-495?
• Chandra high resolution spectroscopy of the circumnuclear matter in the Broad Line Radio Galaxy 3C445
• Multi-wavelength Campaign on NGC 7469 VI. Photoionisation Modelling of the Emission Line Regions and the Warm Absorber
• Direct observation of the Broad Line Region in X-rays during the low state of NGC4051
• Detection of an Unidentified Soft X-ray Emission Feature in NGC 5548
• Wind-luminosity evolution in NLS1 AGN 1H 0707-495