The Edinburgh-Cape Blue Object Survey - IV. Zone 3: Galactic latitudes -40 degree > b > -50 degree

Results for Zone 3 of the Edinburgh-Cape (EC) Blue Object survey are presented. This zone covers that part of the South Galactic Cap between 40... and 50... from the Galactic plane and south of about -12 ...3 of declination. EC Zone 3 contains 53 UK Schmidt Telescope fields covering about 1400 deg... in which we find some 534 blue objects, including hot subdwarfs (~39 per cent), white dwarfs (~21 per cent), cataclysmic variables (~2 per cent) and some star-like galaxies (~9 per cent). A further 178 cooler stars observed in the survey, including low-metallicity F- and G-type stars, are also listed. Both low-dispersion spectroscopic classification and UBV photometry are presented for almost all of the hot objects and either spectroscopy or photometry (sometimes both) for the cooler ones. (ProQuest: ... denotes formulae/symbols omitted.)