Far-infrared properties of type 1 quasars

D.J. Hanish, H.I. Teplitz, P.L. Capak, V. Desai, L. Armus, C.S. Brinkworth, T.Y. Brooke, J.W. Colbert, D.T. Fadda, D.T. Frayer, Minh Huynh, M. Lacy, E.J. Murphy, A. Noriega-Crespo, R. Paladini, C. Scarlata, S.S. Shenoy

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    4 Citations (Scopus)


    We use the Spitzer Space Telescope Enhanced Imaging Products and the Spitzer Archival Far-InfraRed Extragalactic Survey to study the spectral energy distributions (SEDs) of spectroscopically confirmed type 1 quasars selected from the Sloan Digital Sky Survey (SDSS). By combining the Spitzer and SDSS data with the Two Micron All Sky Survey, we are able to construct a statistically robust rest-frame 0.1-100 μm type 1 quasar template. We find that the quasar population is well-described by a single power-law SED at wavelengths less than 20 μm, in good agreement with previous work. However, at longer wavelengths, we find a significant excess in infrared luminosity above an extrapolated power-law, along with significant object-to-object dispersion in the SED. The mean excess reaches a maximum of 0.8 dex at rest-frame wavelengths near 100 μm. © 2013. The American Astronomical Society. All rights reserved.
    Original languageEnglish
    Pages (from-to)9pp
    JournalThe Astrophysical Journal
    Issue number1
    Publication statusPublished - 2013


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