Sloan Digital Sky Survey Quasars in theSpitzerWide-Area Infrared Extragalactic Survey (SWIRE) ELAIS N1 Field: Properties and Spectral Energy Distributions
- 1 March 2005
- journal article
- research article
- Published by American Astronomical Society in The Astronomical Journal
- Vol. 129 (3) , 1198-1211
- https://doi.org/10.1086/428003
Abstract
We present a mid-infrared (MIR) analysis of 35 quasars with spectroscopic redshifts selected from the Spitzer Wide-Area Infrared Extragalactic Survey (SWIRE). We discuss their optical and MIR colors and show that these quasars occupy well-defined regions in MIR color-color space. We examine the issue of type 1 active galactic nuclei candidate selection in detail and propose new selection methods based on MIR colors. The available multiband data allow us to construct two new, well-sampled quasar templates, covering wavelengths from the ultraviolet to the MIR.Keywords
This publication has 28 references indexed in Scilit:
- A study of the 15- m quasars in the ELAIS N1 and N2 fieldsMonthly Notices of the Royal Astronomical Society, 2004
- The Second Data Release of the Sloan Digital Sky SurveyThe Astronomical Journal, 2004
- Mid-infrared selection of AGNAstronomy & Astrophysics, 2004
- The First Data Release of the Sloan Digital Sky SurveyThe Astronomical Journal, 2003
- Starburst and AGN activity in ultraluminous infrared galaxiesMonthly Notices of the Royal Astronomical Society, 2003
- Submillimetre observations of hyperluminous infrared galaxiesMonthly Notices of the Royal Astronomical Society, 2002
- The 2dF QSO Redshift Survey -- I. The optical luminosity function of quasi-stellar objectsMonthly Notices of the Royal Astronomical Society, 2000
- Dusty discs in active galactic nucleiMonthly Notices of the Royal Astronomical Society, 1995
- Thick tori around active galactic nuclei: a comparison of model predictions with observations of the infrared continuum and silicate featuresMonthly Notices of the Royal Astronomical Society, 1994
- The 87GB catalog of radio sources covering delta between O and + 75 deg at 4.85 GHzThe Astrophysical Journal Supplement Series, 1991