Sensitive Radio Observations of High‐Redshift Dusty QSOs
نویسندگان
چکیده
منابع مشابه
Sensitive Radio Observations of High-Redshift Dusty QSOs
We present sensitive radio continuum imaging at 1.4 GHz and 4.9 GHz of seven high redshift QSOs selected for having a 240 GHz continuum detection, which is thought to be thermal dust emission. We detect radio continuum emission from four of the sources: BRI 0952−0115, BR 1202−0725, LBQS 1230+1627B, and BRI 1335−0417. The radio source in BR 1202−0725 is resolved into two components, coincident w...
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C. L. Carilli, F. Bertoldi, A. Omont, P. Cox, R.G. McMahon, K.G. Isaak National Radio Astronomy Observatory, P.O. Box O, Socorro, NM 87801, USA, [email protected] Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany Institut d’Astrophysique de Paris, CNRS, 98bis boulevard Arago, F-75014, Paris, France Institut d’Astrophysique Spatiale, Universite de Paris XI, F-91405...
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We have observed 13 QSOs using the Multiband Imaging Photometer for Spitzer, nine of which were z ≥ 4.5 also observed with the Infrared Array Camera. The observations probe rest wavelengths ∼0.6–4.3 mm, bracketing the local minimum in QSO spectral energy distributions (SEDs) between strong optical emission associated directly with accretion processes and thermal emission from hot dust heated by...
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Moderate resolution spectra have been recorded for a sample of radio-selected QSOs (z ∼ 2.5) discovered in the “Faint Images of the Radio Sky at Twenty centimeters” (FIRST) VLA survey. This work is motivated by the study of a heterogeneous set of QSO absorption line spectra that showed that as many as 36% of the absorbers normally thought to be intergalactic are correlated with physical propert...
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Direct submillimeter imaging has recently revealed the 850 μm background to be mostly composed of a population of distant ultraluminous infrared galaxies, but identifying the optical/near-infrared (NIR) counterparts to these sources has proved difficult due to the poor submillimeter spatial resolution. However, the proportionality of both centimeter and submillimeter data to the star formation ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2000
ISSN: 0004-637X,1538-4357
DOI: 10.1086/308164