Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.mrao.cam.ac.uk/projects/surveys/GMRT/FLS/ReadMe Дата изменения: Tue Nov 16 17:24:06 2010 Дата индексирования: Sat Mar 1 02:39:39 2014 Кодировка:

VIII/Deep 610-MHz GMRT Survey of Spitzer First Look Survey Field (Garn+ 2007)
================================================================================
Deep 610-MHz GMRT Observations of the Spitzer extragalactic First Look Survey
field - I. Observations, data analysis and source catalogue.
Garn T., Green D.A., Hales S.E.G., Riley J.M., Alexander P.

=2007MNRAS.376.1251G (SIMBAD/NED BIBCODE)
================================================================================
ADC_Keywords: Radio sources ; Surveys

Keywords: catalogues - surveys - radio continuum: general

Description:
Observations of the Spitzer extragalactic First Look Survey field taken
at 610 MHz with the Giant Metre-wave Radio Telescope are presented.
Seven individual pointings were observed, covering a total area of
4 square degrees with a resolution of 5.8 x 4.7 arcsec^2^, PA 60 deg.
The r.m.s. noise at the centre of the pointings is between
27 and 30 uJy before correction for the GMRT primary beam.
The techniques used for data reduction and production of a mosaicked
image of the region are described, and the final mosaic, along with
a catalogue of 3944 sources detected above ~ 5 sigma are presented.
The survey complements existing radio and infrared data available
for this region.

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_FLS_dr1.1.dat 95 3944 GMRT FLS sourcelist of 3944 sources
--------------------------------------------------------------------------------

Byte-by-byte Description of file: GMRT_FLS_dr1.1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 24 A24 --- Name IAU designation of source
27- 28 I2 h RAh Centroid position right ascension J2000
30- 31 I2 min RAm Centroid position right ascension J2000
33- 37 F5.2 s RAs Centroid position right ascension J2000
40 A1 - DE- Centroid position declination (sign)
41- 42 I2 deg DEd Centroid position declination J2000
44- 45 I2 arcmin DEm Centroid position declination J2000
47- 50 F4.1 arcsec DEs Centroid position declination J2000
53- 59 F7.3 mJy/beam S Peak pixel brightness
62- 65 I4 uJy/beam Noise Local rms noise
67- 73 F7.3 mJy Sint Integrated flux
76- 80 F5.3 mJy E_Sint Error on integrated flux
83- 86 I4 --- X Centroid X pixel location (nearest pixel)
89- 92 I4 --- Y Centroid Y pixel location (nearest pixel)
95 I1 --- Flags Source Extractor flags
--------------------------------------------------------------------------------
History:
A rounding error in the right ascension and declination positions
listed for some sources has now been corrected (05-May 2008). The
source IAU designations remain unchanged, having been based on the
correctly computed positions throughout. The main purpose in
correcting the positions was to eliminate sporadic mismatches
betweeen IAU designation and listed position in the first data release.
In other respects the effect on the positions is negligible.

================================================================================
(End) Dave Green [MRAO] 21-Apr-2010 (05-May-2008)