VIII/Deep 610-MHz GMRT Survey of the Lockman Hole (Garn+ 2008) ================================================================================ A 610-MHz survey of the Lockman Hole with the Giant Metrewave Radio Telescope - I. Observations, data reduction and source catalogue for the central 5 deg^2^ Garn T., Green D.A., Riley J. M., Alexander P. =2008MNRAS.387.1037G (SIMBAD/NED BIBCODE) ================================================================================ ADC_Keywords: Radio sources ; Surveys Keywords: surveys - catalogues - radio continuum: galaxies Description: We present observations of a central portion of the Lockman Hole, taken at 610 MHz with the Giant Metrewave Radio Telescope (GMRT). Twelve pointings were observed, covering a total area of ~5 square degrees with a resolution of 6 x 5 arcsec^2^, PA +45 deg. The majority of the pointings have an rms of ~60 uJy before primary beam correction. Techniques used for the data reduction and production of a mosaicked image of the region are described, and the final mosaic is presented, along with a catalogue of 2845 sources detected above 6 sigma. Radio source counts are calculated at 610 MHz, and combined with existing 1.4-GHz source counts, in order to show that pure luminosity evolution is sufficient to account for the two source counts simultaneously. For further details of the surveys and data analysis procedures please refer to the published paper referenced at the head of this file. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file GMRT_LH_dr1.dat 95 2845 GMRT LH sourcelist of 2845 sources -------------------------------------------------------------------------------- Byte-by-byte Description of file: GMRT_LH_dr1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 23 A23 --- Name IAU designation of source 25- 26 I2 h RAh Centroid position right ascension J2000 28- 29 I2 min RAm Centroid position right ascension J2000 31- 35 F5.2 s RAs Centroid position right ascension J2000 37 A1 - DE- Centroid position declination (sign) 38- 39 I2 deg DEd Centroid position declination J2000 41- 42 I2 arcmin DEm Centroid position declination J2000 44- 47 F4.1 arcsec DEs Centroid position declination J2000 49- 55 F7.3 mJy/beam S Peak pixel brightness 57- 60 I4 uJy/beam Noise Local rms noise 62- 69 F8.3 mJy Sint Integrated flux 71- 76 F6.3 mJy E_Sint Error on integrated flux 78- 81 I4 --- X Centroid X pixel location (nearest pixel) 83- 86 I4 --- Y Centroid Y pixel location (nearest pixel) 88 I1 --- Flags Source Extractor flags -------------------------------------------------------------------------------- ================================================================================ (End) Dave Green [MRAO] 21-Apr-2010 (14-Nov-2007)