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Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/31660

Title: The AMIGA sample of isolated galaxies: VII Far-infrared and radio continuum study of nuclear activity [complementary material]
Authors: Sabater, J.
Leon, S.
Verdes-Montenegro, L.
Lisenfeld, Ute
Sulentic, J.
Verley, S.
Issue Date: 2008
Abstract: This paper is part of a series involving the AMIGA project (Analysis of the Interstellar Medium of Isolated GAlaxies). This project provides a statistically-significant sample of the most isolated galaxies in the northern sky. We present a study of the nuclear activity in a well-defined sample of the most isolated galaxies (total sample: n=1050, complete subsample: n=719) in the local Universe traced by their far-infrared (FIR) and radio continuum emission. We use the well-known radio continuum-FIR correlation to select radio-excess galaxies that are candidates to host an active galactic nucleus (AGN), as well as the FIR colours to find obscured AGN-candidates. We also used the existing information on nuclear activity in the Veron-Cetty catalogue and in the NASA Extragalactic Database. A final catalogue of AGN-candidate galaxies has been produced that will provide a baseline for studies on the dependence of activity on the environment. Our sample is mostly radio quiet, consistent with its high content of late-type galaxies. At most ~1.5% of the galaxies show a radio excess with respect to the radio-FIR correlation, and this fraction even goes down to less than 0.8% after rejection of back/foreground sources using FIRST. We find that the fraction of FIR colour selected AGN-candidates is ~28% with a lower limit of ~7%. Our final catalogue contains 89 AGN candidates and is publicly available on the AMIGA web page (http://www.iaa.csic.es/AMIGA.html).
Description: Table1: Galaxies from AMIGA sample listed as active in the literature
Table2: Radio-excess galaxies found using the radio-FIR correlation
Table4: Radio-excess galaxies in FIRST
Table5: Classified galaxies using the IRAS colour method
Table6: Catalogue of AGN-candidates for the total sample
Keywords: Surveys
Galaxies
Radio
Infrared sources
Evolution
Interactions
Dataset
URI: http://hdl.handle.net/10481/31660
Rights : Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Appears in Collections:Información complementaria de las Investigaciones (Datos en Bruto)

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File Description SizeFormat
ReadMe.txtReadMe10.89 kBTextView/Open
table1.datGalaxies form AMIGA sample listed as active in the literature2.77 kBOpenDocument TextView/Open
table2.datRadio-excess galaxies found using the radio-FIR correlation720 BOpenDocument TextView/Open
table4.datRadio-excess galaxies in FIRST192 BOpenDocument TextView/Open
table5.datClassified galaxies using the IRAS colour method5.99 kBOpenDocument TextView/Open
table6.datCatalogue of AGN-candidates for the total sample4.17 kBOpenDocument TextView/Open
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