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- W1987029405 abstract "view Abstract Citations (103) References (30) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS X-Ray Observations of the Warm Absorber in NGC 3783 Turner, T. J. ; Nandra, K. ; George, I. M. ; Fabian, A. C. ; Pounds, K. A. Abstract We present a high signal-to-noise ROSAT position sensitive proportional counter (PSPC) observation of the Seyfert 1 galaxy NGC 3783. The 0.1-2.5 keV spectrum shows strong evidence for an absorption edge most likely associated with O VII-VIII. Such a feature, which has now been detected in a number of PSPC spectra (Nandra et al.; Nandra & Pounds; Turner et al.), is the signature of highly ionized material, the so-called warm absorber, in the line of sight to the X-ray source. The result is strongly supported by analysis of previously unpublished Ginga data and reanalysis of a 1985 EXOSAT observation of NGC 3783. We show that the warm absorber is plausibly located at a radius ≲1018 cm from the X-ray source, possibly in an outflowing wind. Publication: The Astrophysical Journal Pub Date: December 1993 DOI: 10.1086/173466 Bibcode: 1993ApJ...419..127T Keywords: GALAXIES: INDIVIDUAL NGC NUMBER: NGC 3783; GALAXIES: SEYFERT; X-RAYS: GALAXIES full text sources ADS | data products SIMBAD (2) NED (1) HEASARC (1)" @default.
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- W1987029405 date "1993-12-01" @default.
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- W1987029405 title "X-Ray Observations of the Warm Absorber in NGC 3783" @default.
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