A High Reliability Survey of Discrete Epoch of Reionization Foreground
  Sources in the MWA EoR0 Field
  Detection of the Epoch of Reionization HI signal requires a precise
understanding of the intervening galaxies and AGN, both for instrumental
calibration and foreground removal. We present a catalogue of 7394
extragalactic sources at 182 MHz detected in the RA=0 field of the Murchison
Widefield Array Epoch of Reionization observation programme. Motivated by
unprecedented requirements for precision and reliability we develop new methods
for source finding and selection. We apply machine learning methods to
self-consistently classify the relative reliability of 9490 source candidates.
A subset of 7466 are selected based on reliability class and signal-to-noise
ratio criteria. These are statistically cross-matched to four other radio
surveys using both position and flux density information. We find 7369 sources
to have confident matches, including 90 partially resolved sources that split
into a total of 192 sub-components. An additional 25 unmatched sources are
included as new radio detections. The catalogue sources have a median spectral
index of -0.85. Spectral flattening is seen toward lower frequencies with a
median of -0.71 predicted at 182 MHz. The astrometric error is 7 arcsec.
compared to a 2.3 arcmin. beam FWHM. The resulting catalogue covers
approximately 1400 sq. deg. and is complete to approximately 80 mJy within half
beam power. This provides the most reliable discrete source sky model available
to date in the MWA EoR0 field for precision foreground subtraction.
