RXTE observations of the Seyfert galaxy NGC 5506: evidence for reflection from disk and torus

Abstract

We report on observations of the narrow line Seyfert galaxy NGC 5506 with the Rossi X-ray TIming Explorer. The observations cover a time interval of ~1000 days during which the source showed strong flux and spectral variability. The spectrum clearly shows iron fluorescence emission at 6.4 keV and significant reflection features. Both the equivalent width of the iron line and the relative strength of the reflected continuum are higher during low flux states. The variability of the reflection features can be explained by the presence of two reflected components: one that responds rapidly to flux changes of the primary continuum and a second, slowly variable, component originating from a distant reflector, e.g. a molecular torus.

7 pages, 7 figures. Accepted for publication in MNRAS

References in corpus (3)

• Simultaneous EUVE/ASCA/RXTE Observations of NGC 5548
• The swansong in context: long-timescale X-ray variability of NGC 4051
• Broad Band X-Ray Observations of the Narrow Line X-Ray Galaxy NGC 5506

Cited by in corpus (25)

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• Testing the Unification Model for AGN in the Infrared: are the obscuring tori of Type 1 and 2 Seyferts different?
• Clustering of Galaxy Clusters in CDM Universes
• Correlated long-term optical and X-ray variations in NGC 5548
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• Isotropic Mid-Infrared Emission from the Central 100 pc of Active Galaxies
• Ionized iron Kαlines in AGN X-ray spectra
• The recent X-ray history of NGC 5506
• Discovery of Water Maser Emission in Five AGN and a Possible Correlation Between Water Maser and Nuclear 2-10 keV Luminosities
• The complex iron line of NGC 5506
• X-ray spectral variability of the Seyfert galaxy NGC 4051
• Contemporaneous Chandra HETG and Suzaku X-ray Observations of NGC 4051
• Evolution of the X-ray spectrum in the flare model of Active Galactic Nuclei
• Long Term Spectral Variability of Seyfert Galaxies from RXTE Color-Flux Diagrams
• Catching NGC 4051 in the low state with Chandra
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• Possible X-ray diagnostic for jet/disk dominance in Type 1 AGN
• Relativistic iron K alpha line detection in the Suzaku spectra of IC 4329A
• The study of the circumnuclear environment of accreting supermassive black holes with realistic X-ray spectral models
• An XMM-Newton Analysis of the Supermassive Black Hole Binary Candidate MCG+11--11--032