350 μm Dust Emission from High‐Redshift Quasars
Top Cited Papers
- 10 May 2006
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 642 (2) , 694-701
- https://doi.org/10.1086/500636
Abstract
We report detections of six high-redshift (1.8 < z < 6.4), optically luminous, radio-quiet quasars at 350 micron, using the SHARC II bolometer camera at the Caltech Submillimeter Observatory. Our observations double the number of high-redshift quasars for which 350 micron photometry is available. By combining the 350 micron measurements with observations at other submillimeter/millimeter wavelengths, for each source we have determined the temperature of the emitting dust (ranging from 40 to 60 K) and the far-infrared luminosity (0.6 to 2.2 x 10(13) Lo). The combined mean spectral energy distribution (SED) of all high-redshift quasars with two or more rest frame far-infrared photometric measurements is best fit with a greybody with temperature of 47 +- 3 K and a dust emissivity power-law spectral index of beta = 1.6 +- 0.1. This warm dust component is a good tracer of the starburst activity of the quasar host galaxy. The ratio of the far-infrared to radio luminosities of infrared luminous, radio-quiet high-redshift quasars is consistent with that found for local star-forming galaxies.Keywords
All Related Versions
This publication has 43 references indexed in Scilit:
- The emissivity of dust grains in spiral galaxiesAstronomy & Astrophysics, 2004
- The Far‐ and Mid‐Infrared/Radio Correlations in theSpitzerExtragalactic First Look SurveyThe Astrophysical Journal Supplement Series, 2004
- Starburst activity in the host galaxy of thez$\mathsf{=2.58}$ quasar J1409+5628Astronomy & Astrophysics, 2004
- High-excitation CO in a quasar host galaxy atz $\mathsf{=6.42}$Astronomy & Astrophysics, 2003
- Dust emission from the most distant quasarsAstronomy & Astrophysics, 2003
- A Molecular Einstein Ring: Imaging a Starburst Disk Surrounding a Quasi-Stellar ObjectScience, 2003
- Submillimetre and far-infrared spectral energy distributions of galaxies: the luminosity-temperature relation and consequences for photometric redshiftsMonthly Notices of the Royal Astronomical Society, 2003
- Imaging Low‐Order CO Emission from thez = 4.12 Quasi‐Stellar Object PSS J2322+1944The Astrophysical Journal, 2002
- A Submillimeter Survey of Gravitationally Lensed QuasarsThe Astrophysical Journal, 2002
- 350 Micron Dust Emission from High-Redshift ObjectsThe Astrophysical Journal, 1999