Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aj....129.1198h&link_type=abstract
The Astronomical Journal, Volume 129, Issue 3, pp. 1198-1211.
Astronomy and Astrophysics
Astronomy
75
Galaxies: Active, Infrared: General, Galaxies: Quasars: General
Scientific paper
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.
Afonso-Luis Alejandro
Babbedge Thomas
Fang Fan
Farrah Duncan
Franceschini Alberto
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