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| Paper: |
Spectral Energy Distribution of Far-infrared Bright Quasar Sample in the Lockman Hole |
| Volume: |
446, Galaxy Evolution: Infrared to Millimeter Wavelength Perspective |
| Page: |
241 |
| Authors: |
Dai, Y.; Huang, J.-S.; Omont, A.; Hatziminaoglou, E.; Willmer, C.; Fazio, G.; Elvis, M.; Bergeron, J.; Rigopoulou, D.; Perez-Fournon, I. |
| Abstract: |
The far-infrared (FIR) properties of Quasi-Stellar Objects (QSOs) is important in connecting
the Starburst (SB) and Active Galactic Nucleus (AGN) activities. Therefore, we
constructed a 24 μ m selected QSO sample to study their FIR behavior.
All sources were spectroscopically identified from MMT or the Sloan Digital Sky Survey (SDSS) as broadline quasars.
Of the total ∼330 sources, 37 have secure FIR detections in the Herschel-HERMES field.
We compared their SEDs to previous QSO templates, and found that
those FIR bright quasars differ from existing AGNs only by an additional dust component(s).
Further studies on the origin for the FIR emission reveals the relative roles starburst and AGN play
in powering the dust emission, based on the dust temperature, FIR luminosity,
and the shapes of individual SEDs.
The dust temperatures have a wide range from 20K to 80K with a median of ∼ 30K, indicating homogeneous heating mechanisms
that could later be related to the origin of these cold dust emissions. |
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