The complex FeK line of the Narrow-Line Seyfert 1 galaxy IRAS 13349+2438 (Articolo in rivista)

Type
Label
  • The complex FeK line of the Narrow-Line Seyfert 1 galaxy IRAS 13349+2438 (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Alternative label
  • Longinotti, A. L.; Cappi, M.; Nandra, K.; Dadina, M.; Pellegrini, S. (2003)
    The complex FeK line of the Narrow-Line Seyfert 1 galaxy IRAS 13349+2438
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Longinotti, A. L.; Cappi, M.; Nandra, K.; Dadina, M.; Pellegrini, S. (literal)
Pagina inizio
  • 471 (literal)
Pagina fine
  • 479 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 410 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Titolo
  • The complex FeK line of the Narrow-Line Seyfert 1 galaxy IRAS 13349+2438 (literal)
Abstract
  • The observation of the Narrow-Line Seyfert 1 galaxy IRAS 13349+2438 performed by XMM-Newton European Photon Imaging Camera between 0.3-10 keV, is presented here. The broadband spectrum of the source is dominated at low energies (E <=2 keV) by a strong excess of emission and by complex emission/absorption features between ~ 5.5-8.0 keV. The soft X-ray spectrum is consistent with ionized absorption found by the Reflection Grating Spectrometer (Sako et al. 2001a). We focus on the 2-10 keV spectrum which shows clear evidence for a broad, complex FeKalpha line, previously unseen by ASCA, and for an Fe K-shell edge detected at ~ 7.3-7.4 keV (rest-frame). The presence of this edge could be explained by either partial covering or ionized/relativistic reflection models, with the latter being preferred and with a resulting power law slope of Gamma ~ 2.2. The line profile is complex, with a broad bump between ~ 5.5-6.5 keV and a narrow emission line at ~ 7 keV, separated by a sharp drop at ~ 6.8 keV. This profile is compatible with two possible scenarios: i) a broad, ionized and gravitationally redshifted Laor diskline plus a narrow and ionized emission line; ii) a broad, ionized and single Schwarzschild (double-peaked) diskline with a superimposed narrow absorption line. (literal)
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