A study of the 15-mu m quasars in the ELAIS N1 and N2 fields

Afonso-Luis, A. and Hatziminaoglou, E. and Perez-Fournon, I. and Gonzalez-Solares, E.A. and Rowan-Robinson, M. and Vaccari, M. and Lari, C. and Serjeant, S. and Oliver, S. and Hernan-Caballero, A. and Montenegro-Montes, F.M. (2004) A study of the 15-mu m quasars in the ELAIS N1 and N2 fields. Monthly Notices of the Royal Astronomical Society, 354 (4). pp. 961-970. ISSN 0035-8711. (The full text of this publication is not available from this repository)

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Abstract

This paper discusses the properties of the European Large Area ISO Survey (ELAIS) 15-mum quasars and tries to establish a robust method of quasar selection for future use within the Spitzer Wide-Area Infrared Extragalactic Survey (SWIRE) framework. The importance of good-quality ground-based optical data is stressed, both for the selection of candidates and for the estimation of photometric redshifts. Colour-colour plots and template fitting are used for these purposes. The properties of the 15-mum quasar sample, including variability and black hole masses, are studied and compared to the properties of other quasars that lie within the same fields but have no mid-infrared counterparts. The two subsamples do not present substantial differences and are believed to come from the same parent population.

Item Type: Article
Additional information: 29 BLACKWELL PUBLISHING LTD 868OJ
Uncontrolled keywords: techniques : photometric; quasars : emission lines; quasars : general; infrared : general
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: Maggie Francis
Date Deposited: 10 Sep 2008 15:17
Last Modified: 14 Jan 2010 14:46
Resource URI: http://kar.kent.ac.uk/id/eprint/11770 (The current URI for this page, for reference purposes)
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