Elusive AGN in theXMM-Newtonbright serendipitous survey

2007/05/21 by A. Caccianiga, P. Severgnini, R. Della Ceca +3 · 1 citation
Physics and Astronomy · #Archaeology #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Context (archaeology) #Galaxies: Formation, Evolution, Phenomena #Gamma-ray bursts and supernovae #Geography #Physics #Signature (topology) #Spectral properties #Spectral signature #astro-ph

paper · pdf · doi:10.1051/0004-6361:20077732

accepted for publication in A&A, 17 pages, 9 figures

arxiv created 2007/05/21 · openalex publication_date 2007/05/25 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Context.Optical follow-up of X-ray selected sources finds a significant fraction of “optically dull” sources characterized by optical spectra without obvious signature of AGN activity. In many cases, however, the presence of an AGN is inferred from other diagnostics (e.g. the X-ray properties). Understanding and accounting for this “elusiveness” is mandatory for a reliable study of the AGN physical and statistical properties.

Citations

• The NRAO VLA Sky Survey
• Unveiling the AGN powering the "Composite" Seyfert/Star-forming galaxy NGC 7679: BeppoSAX and ASCA results
• The XMM-NewtonHBS28 sample: Studying the obscuration in hard X-ray selected AGNs
• X-ray nature of the LINER nuclear sources
• On the Nature of X‐Ray–Bright, Optically Normal Galaxies
• SUMSS: A Wide-Field Radio Imaging Survey of the Southern Sky. I. Science Goals, Survey Design, and Instrumentation

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• Prospects for AGN studies with ALMA