The Molonglo Southern 4 Jy sample (MS4). I. Definition

Abstract

We have defined a complete sample of 228 southern radio sources at 408 MHz with integrated flux densities S_408 > 4.0 Jy, Galactic latitude |b| > 10 deg and declination -85 deg < delta < -30 deg. The main finding survey used was the Molonglo Reference Catalogue. We describe in detail how the Molonglo Southern 4 Jy sample (MS4) was assembled and its completeness assessed. Sources in the sample were imaged at 843 MHz with the Molonglo Observatory Synthesis Telescope to obtain positions accurate to about 1 arcsec, as well as flux densities and angular sizes; follow-up radio and optical observations are presented in Paper II. Radio spectra for the MS4 have been compiled from the literature and used to estimate flux densities at 178 MHz. The strong-source subset of MS4, with S_178 > 10.9 Jy (SMS4), provides a southern sample closely equivalent to the well-studied northern 3CRR sample. Comparison of SMS4 with 3CRR shows a reassuring similarity in source density and median flux density between the two samples.

arXiv comment59 pages, 5 Postscript figures. To appear in Astronomical Journal. For a higher-resolution version of Figure 2, see http://www.physics.usyd.edu.au/astrop/rwh/ms4/

References in corpus (28)

• SUMSS: A Wide-Field Radio Imaging Survey of the Southern Sky. II. The Source Catalogue
• SUMSS: A Wide-Field Radio Imaging Survey of the Southern Sky. I. Science goals, survey design and instrumentation
• Radio and X-ray observations of the jet in Centaurus A
• Chandra Discovery of a 100 kpc X-ray Jet in PKS 0637--752
• A Sample of 669 Ultra Steep Spectrum Radio Sources to Find High Redshift Radio Galaxies
• The Parkes Half-Jansky Flat-Spectrum Sample
• X-ray Emission from the Hot ISM and SW Radio Lobe of the Nearby Radio Galaxy Centaurus A
• The Chandra X-ray Observatory Resolves the X-ray Morphology and Spectra of a Jet in PKS 0637-752
• Chandra ACIS-S Observations of Abell 4059: Signs of Dramatic Interaction Between a Radio Galaxy and a Galaxy Cluster
• Chandra Observations of the X-ray Jet in Centaurus A
• Magnetic fields in the Centaurus cluster
• HI absorption in radio galaxies: effect of orientation or interstellar medium?
• Centaurus A: multiple outbursts or bursting bubble?
• A Case for Renewed Activity in the Giant Radio Galaxy J0116-473
• A 98% spectroscopically complete sample of the most powerful equatorial radio sources at 408 MHz
• The Molonglo Southern 4 Jy sample (MS4). II. ATCA imaging and optical identification
• Renewed activity in the radio galaxy PKS B1545-321: twin edge-brightened beams within diffuse radio lobes
• The radio structures of southern 2-Jy radio sources: new ATCA and VLA radio images
• The X-ray jet and halo of PKS 0521-365
• Observations of Abell 4059 with Chandra, HST and VLA: unraveling a complex cluster/radio-galaxy interaction
• A search for distant radio galaxies from SUMSS and NVSS: I. Sample definition, radio and K-band imaging
• Atomic and Molecular Gas in the Starburst Galaxy NGC4945
• Long-term monitoring of Molonglo calibrators
• Radio jet interactions in the radio galaxy PKS 2152-699
• PKS B1400-33: an unusual radio relic in a poor cluster
• A low frequency radio telescope at Mauritius for a Southern sky survey
• Pictor A (PKS 0518-45) - From Nucleus to Lobes
• Extended X-ray emission from the BL Lac object PKS 0521-365

Cited by in corpus (38)

• GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey I: A low-frequency extragalactic catalogue
• The First Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope
• New Limits on 21cm EoR From PAPER-32 Consistent with an X-Ray Heated IGM at z=7.7
• Fermi Large Area Telescope Observations of Misaligned AGN
• Contribution of the Gamma-ray Loud Radio Galaxies Core Emissions to the Cosmic MeV and GeV Gamma-Ray Background Radiation
• The local radio-galaxy population at 20 GHz
• The luminosity-dependent high-redshift turnover in the steep spectrum radio luminosity function: clear evidence for downsizing in the radio-AGN population
• The UTMOST: A hybrid digital signal processor transforms the MOST
• The Murchison Widefield Array Commissioning Survey: A Low-Frequency Catalogue of 14,110 Compact Radio Sources over 6,100 Square Degrees
• The Molonglo Southern 4 Jy sample (MS4). II. ATCA imaging and optical identification
• The radio continuum structure of Centaurus A at 1.4 GHz
• The first Murchison Widefield Array low frequency radio observations of cluster scale non-thermal emission: the case of Abell 3667
• Dust tori in radio galaxies
• New 145-MHz Source Measurements by PAPER in the Southern Sky
• Using head-tail galaxies to constrain the intracluster magnetic field: an in-depth study of PKS J0334-3900
• A new search for distant radio galaxies in the Southern hemisphere -- III. Optical spectroscopy and analysis of the MRCR--SUMSS sample
• Radio morphology-accretion mode link in FRII low-excitation radio galaxies
• On the Evolution of the Cores of Radio Sources and Their Extended Radio Emission
• A Flux Scale for Southern Hemisphere 21cm EoR Experiments
• A new search for distant radio galaxies in the southern hemisphere - I. Sample definition and radio properties
• The GLEAM 4-Jy (G4Jy) Sample: II. Host-galaxy identification for individual sources
• The GLEAM 4-Jy (G4Jy) Sample: I. Definition and the catalogue
• A mixture evolution scenario of the AGN radio luminosity function. II. Do low- and high-power radio-loud AGNs evolve differently?
• An ASKAP survey for HI absorption towards dust-obscured quasars
• Intracluster medium of the merging cluster Abell 3395
• A graphical analysis of the systematic error of classical binned methods in constructing luminosity functions
• A mixture evolution scenario of the AGN radio luminosity function
• Gamma-Rays from Radio Galaxies: Fermi-Lat Observations
• Testing for Shock-Heated X-ray Gas Around Compact Steep Spectrum Radio Galaxies
• The extraordinary radio galaxy MRC B1221-423: probing deeper at radio and optical wavelengths
• Interplanetary Scintillation studies with the Murchison Wide-field Array IV: The hosts of sub-arcsecond compact sources at low radio frequencies
• Jet-triggered star formation in young radio galaxies
• Powerful Radio Sources in the Southern Sky. I. Optical Identifications
• Powerful Radio Sources in the Southern Sky. II. A SWIFT X-Ray Perspective
• A non cool-core 4.6-keV cluster around the bright nearby radio galaxy PKS B1416-493
• A Swift X-ray view of the SMS4 sample -- X-ray properties of 31 quasars and radio galaxies
• Axion-like particle searches with MeerKAT and SKA
• A Swift X-ray view of the SMS4 sample -- II: X-ray properties of 17 bright radio sources