THE ALLEN TELESCOPE ARRAY Pi GHz SKY SURVEY. I. SURVEY DESCRIPTION AND STATIC CATALOG RESULTS FOR THE BOOTES FIELD

摘要: The Pi GHz Sky Survey (PiGSS) is a key project of the Allen Telescope Array. PiGSS 3.1 survey radio continuum emission in extragalactic sky with an emphasis on synoptic observations that measure static and time-variable properties sky. During 2.5 year campaign, will twice observe similar to 250,000 sources 10,000 deg(2) region b > 30 degrees rms sensitivity 1 mJy. Additionally, sub-regions be observed multiple times characterize variability timescales days years. We present here 10 Bootes constellation overlapping NOAO Deep Wide Field field. image was constructed from 75 daily distributed over 4 month period has flux density between 200 250 mu Jy. This represents deeper by factor 4-8 than we achieve entire deg(2). provide densities, source sizes, spectral indices for 425 detected image. identify 100 new flat-spectrum sources; when completed 10(4) sources. one possible transient source. provides limits faint transients variables characteristic durations months.