Sloan Digital Sky Survey Quasars in the Spitzer Wide-Area Infrared Extragalactic Survey (SWIRE) ELAIS N1 Field: Properties and Spectral Energy Distributions

March 2005 • 2005AJ....129.1198H

Authors • Hatziminaoglou, E. • Pérez-Fournon, I. • Polletta, M. • Afonso-Luis, A. • Hernán-Caballero, A. • Montenegro-Montes, F. M. • Lonsdale, C. • Xu, C. K. • Franceschini, A. • Rowan-Robinson, M. • Babbedge, T. • Smith, H. E. • Surace, J. • Shupe, D. • Fang, F. • Farrah, D. • Oliver, S. • González-Solares, E. A. • Serjeant, S.

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.

Links

• SIMBAD http://simbad.u-strasbg.fr/simbo.pl?bibcode=2005AJ....129.1198H
• PDF https://iopscience.iop.org/article/10.1086/428003/pdf
• NED https://ned.ipac.caltech.edu/uri/NED::InRefcode/2005AJ....129.1198H
• DATA http://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/129/1198
• DATA https://irsa.ipac.caltech.edu/bibdata/2005/H/2005AJ....129.1198H.html
• ELECTR https://iopscience.iop.org/article/10.1086/428003