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Related papers: Dust in 3C324

200 papers

We use an 850-micron SCUBA map of the HDF to study the dust properties of optically-selected starburst galaxies at high redshift. Although the 850-micron map does not allow detection of the majority of individual sources, we show that the…

We analyse 850um continuum observations of eight massive X-ray detected galaxy clusters at z~0.8-1.6 taken with SCUBA-2 on the James Clerk Maxwell Telescope. We find an average overdensity of 850um-selected sources of a factor of 4+/-2 per…

Astrophysics of Galaxies · Physics 2019-04-10 E. A. Cooke , Ian Smail , S. M. Stach , A. M. Swinbank , R. G. Bower , Chian-Chou Chen , Y. Koyama , A. P. Thomson

We report the discovery of the most distant radio galaxy to date, TGSS1530 at a redshift of $z=5.72$ close to the presumed end of the Epoch of Reionisation. The radio galaxy was selected from the TGSS ADR1 survey at 150 MHz for having to an…

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…

Astrophysics · Physics 2009-11-11 A. Beelen , P. Cox , D. J. Benford , C. D. Dowell , A. Kovacs , F. Bertoldi , A. Omont , C. L. Carilli

Using the Spitzer Space Telescope, we have obtained 3.6--24 micron photometry of 38 radio galaxies and 24 quasars from the 3CR catalog at redshift 1<z<2.5. This 178 MHz-selected sample is unbiased with respect to orientation and therefore…

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…

Astrophysics · Physics 2009-10-31 M. S. Yun , C. L. Carilli , R. Kawabe , Y. Tutui , K. Kohno , K. Ohta

We present the results of an 850 micron JCMT/SCUBA survey for dust around 13 nearby solar mass stars. The dust mass sensitivity ranged from 0.005 to 0.16 Earth masses. Three sources were detected in the survey, one of which (HD 107146) has…

Astrophysics · Physics 2009-11-13 Joan Najita , Jonathan P. Williams

We report the discovery of large-scale diffuse radio emission South-East of the galaxy cluster MACS J0520.7-1328, detected through high sensitivity Giant Metrewave Radio Telescope 323 MHz observations. This emission is dominated by an…

The first observations to detect a population of distant galaxies directly in the submillimetre waveband have recently been made using the new Submillimetre Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope (JCMT).…

Astrophysics · Physics 2009-10-30 A W Blain , R J Ivison , Ian Smail

We present the results of a multi-wavelength study of the 19 most significant sub-mm sources detected in the SCUBA 8-mJy survey. As described in Scott et al. (2001), this survey covers ~260 arcmin^2 using the sub-millimetre camera SCUBA, to…

In order to study the nature of the far-infrared emission observed in radio-loud active galaxies, we have obtained 1.2 mm observations with the IRAM 30 m telescope for a sample of eight radio-loud active galaxies. In all objects we find…

Astrophysics · Physics 2009-11-06 Ilse van Bemmel , Frank Bertoldi

We present results on the physical states of three high-redshift powerful radio galaxies (3C 292 at z=0.7, 3C 184 at z=1, and 3C322 at z=1.7). They were obtained by combining radio measurements with X-ray measurements from XMM-Newton that…

Astrophysics · Physics 2009-11-10 E. Belsole , D. M. Worrall , M. J. Hardcastle

We present observations at 250 GHz (1.2 mm), 43 GHz, and 1.4 GHz of a sample of 41 QSOs at z > 3.7 found in the Sloan Digital Sky Survey. We detect 16 sources with a 250 GHz flux density greater than 1.4 mJy. The combination of centimeter…

We identify eight z>1 radio sources undetected at 850um but robustly detected at 70um, confirming that they represent ultraluminous infrared galaxies (ULIRGs) with hotter dust temperatures (T_dust=52+-10 K) than Submillimetre Galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 C. M. Casey , S. C. Chapman , R. J. Beswick , A. D. Biggs , A. W. Blain , L. J. Hainline , R. J. Ivison , T. Muxlow , I. Smail

We report the analysis of Fermi Large Area Telescope data from five years of observations of the broad line radio galaxy 3C 120. The accumulation of larger data set results in the detection of high-energy $\gamma$-rays up to 10 GeV, with a…

High Energy Astrophysical Phenomena · Physics 2015-02-04 N. Sahakyan , D. Zargaryan , V. Baghmanyan

We present sensitive phase-referenced VLBI results on the radio continuum emission from the z=1.87 luminous submillimeter galaxy (SMG) GOODS 850-3. The observations were carried out at 1.4 GHz using the High Sensitivity Array (HSA). Our…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 E. Momjian , W-H. Wang , K. K. Knudsen , C. L. Carilli , L. L. Cowie , A. J. Barger

In this study we define a new sample of distant powerful radio galaxies in order to study their host-galaxy properties and provide targets for future observations of HI absorption with new radio telescopes and to understand the fuelling and…

Astrophysics of Galaxies · Physics 2019-09-25 Takalani Marubini , Matt J. Jarvis , Stephen Fine , Tom Mauch , Kim McAlpine , Matthew Prescott

The existence of submillimeter-selected galaxies (SMGs) at redshifts z>4 has recently been confirmed. Using simultaneously all the available data from UV to radio we have modeled the spectral energy distributions of the six known…

Cosmology and Nongalactic Astrophysics · Physics 2010-03-13 Michał J. Michałowski , Darach Watson , Jens Hjorth

We present new radio continuum observations of two dwarf starburst galaxies, NGC3125 and NGC5408, with observations at 4.80GHz (6cm) and 8.64GHz (3cm), taken with the Australia Telescope Compact Array (ATCA). Both galaxies show a complex…

Astrophysics · Physics 2009-11-07 Ian R. Stevens , Duncan A. Forbes , Ray P. Norris