A search for relativistic outflows signatures in the X-ray spectra of radio-quiet AGNs

A search for relativistic outflows signatures in the X-ray spectra of radio-quiet AGNs

We performed a blind search for blue-shifted Fe K absorption lines at energies greater than 6 keV in the X-ray spectra of a sample of 44 radio-quiet AGNs observed with XMM-Newton. We statistically quantified the parameters and the incidence of such lines and also determined then-detection significan...

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Veröffentlicht in:Proceedings of the International Conference 2009-09, Vol.1248, p.329-332
Hauptverfasser: Tombesi, F, Cappi, M, Reeves, J N, Palumbo, G G C, Yaqoob, T, Braito, V, Dadina, M
Format: Artikel
Sprache:eng
Schlagworte:
Bias
Blinds
Computer simulation
Documents
Incidence
Iron
Monte Carlo methods
Outflow
Samples
Searching
Signatures
Spectra
Spectral lines
Statistical analysis
Statistical methods
X-rays
XMM (spacecraft)
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Beschreibung
Zusammenfassung:We performed a blind search for blue-shifted Fe K absorption lines at energies greater than 6 keV in the X-ray spectra of a sample of 44 radio-quiet AGNs observed with XMM-Newton. We statistically quantified the parameters and the incidence of such lines and also determined then-detection significance through extensive Monte Carlo simulations. This allows us to define their global veracity and to overcome the reported publication bias. These findings suggest the presence of previously unknown ultra-fast outflows in radio-quiet AGNs.
ISSN:0094-243X