The Low Frequency Radio Counterpart of the XMM Large Scale Structure Survey

Abstract

The XMM Large Scale Structure Survey (XMM-LSS) is a major project to map the large scale structure of the universe out to cosmological distances. An 8 degree by 8 degree region will be surveyed by XMM with planned optical follow-up to produce a three-dimensional map of many hundreds of clusters out to a redshift of z = 1. To explore the relation of the large scale structure to the location and properties of extragalactic radio sources, the XMM-LSS project also includes a low frequency radio survey of this region. This combination will provide unprecedented insight into how the radio source formation and evolution are affected by the local environment. Here, we present preliminary results from our 325 MHz and 74 MHz surveys in this region. At 325 MHz, we have a flux limit of 4 mJy/beam, a resolution of 6.3", and a total of 256 source detections over 5.6 square degrees. At 74 MHz, we have a flux limit of 275 mJy/beam, a resolution of 30", and a total of 211 source detections over 110 square degrees. We describe these results and explore what they tell us about the population of extra-galactic low frequency radio sources. The 74 MHz survey represents the first presentation of a deep, sub-arcminute resolution survey at such a low frequency. This was made possible by recent advances in both hardware and data reduction algorithms which we describe in detail.

arXiv comment41 pages, 11 figures, 4 tables: Accepted for publication in ApJ

References in corpus (7)

• The Lx-T Relation and Intracluster Gas Fractions of X-ray Clusters
• The Parkes Half-Jansky Flat-Spectrum Sample
• The FIRST Bright Quasar Survey III. The South Galactic Cap
• The LBDS Hercules sample of mJy radio sources at 1.4 GHz - II. Redshift distribution, radio luminosity function, and the high-redshift cut-off
• The FIRST Sample of Ultraluminous Infrared Galaxies at High Redshift I. Sample and Near-IR Morphologies
• Cosmology with Galaxy Clusters in the XMM Large-Scale Structure Survey
• Radio emission of Shakhbazian Compact Galaxy Groups

Cited by in corpus (21)

• SWIRE: The SIRTF Wide-area InfraRed Extragalactic Survey
• The VLA Low-frequency Sky Survey
• Ionospheric Calibration of Low Frequency Radio Interferometric Observations using the Peeling Scheme: I. Method Description and First Results
• The XMM-LSS survey. Survey design and first results
• The 74MHz System on the Very Large Array
• The Identification of Blue Horizontal Branch Stars in the Integrated Spectra of Globular Clusters
• High-Resolution, Wide-Field Imaging of the Galactic Center Region at 330 MHz
• LOFAR, a new low frequency radio telescope
• The XMM-LSS survey: The XMDS/VVDS 4 sigma catalogue
• The XMM large scale structure survey: optical vs. X-ray classifications of active galactic nuclei and the unified scheme
• Obscured and unobscured AGN populations in a hard-X-ray selected sample of the XMDS survey
• The XMM Large Scale Structure Survey: Properties and Two-Point Angular Correlations of Point-like Sources
• Multiwavelength characterization of faint Ultra Steep Spectrum radio sources : A search for high-redshift radio galaxies
• LOFAR observations of the XMM-LSS field
• Optical identification of XMM sources in the CFHTLS
• LOFAR low-band antenna observations of the 3C295 and Bootes fields: source counts and ultra-steep spectrum sources
• Testing the galaxy cluster mass-observable relations at z = 1 with XMM-Newton and Chandra observations of XLSSJ022403.9-041328
• A Wide Field, Low Frequency Radio Survey of the Field of M31: I. Construction and Statistical Analysis of the Source Catalog
• A Deep 150 MHz GMRT Survey in Eridanus
• Clustering at 74 MHz
• From Nearby Low Luminosity AGN to High Redshift Radio Galaxies: Science Interests with SKA