2003/02/18 by S. Bianchi, I. Balestra, G. Matt +2 · 1 citation
Physics and Astronomy · #Astrophysical Phenomena and Observations #Galaxies: Formation, Evolution, Phenomena #Gamma-ray bursts and supernovae #astro-ph
paper · pdf · doi:10.1051/0004-6361:20030210
published as Astron.Astrophys.402:141-150,2003 · 9 pages, 9 figures, accepted for publication in A&A
arxiv created 2003/02/18 · openalex publication_date 2003/04/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
We present a detailed discussion of the spectral and spatial components of NGC 5506, based on XMM–Newton, Chandra and BeppoSAX observations. The overall picture consists of a nucleus absorbed by cold gas with column density of ≈ 1022 cm-2 and surrounded by a Compton-thick torus, whose existence is inferred by a cold reflection component and an iron Kα line. On a much larger scale, a photoionized gas extended on ≈ 350 pc reprocesses the nuclear radiation, producing a soft excess and ionized iron lines. Noteworthy, we find no evidence for the presence of the accretion disc.