The survey description and near-infrared properties for 92 galaxies are presented for the Extended Disc Galaxy Exploration Science ( EDGES ) Survey , along with an investigation into the properties of the stellar halos of these galaxies .
EDGES is a Spitzer Space Telescope Warm Mission program designed to reach the surface brightness limit ( \sim 0.5 kJy sr ^ { -1 } or 29 AB mag arcsec ^ { -2 } ) of the Infrared Array Camera ( IRAC ) 3.6 and 4.5 { \mu } m bands for a wide range of galaxy types found within the local volume .
The surface brightness profiles exhibit a large range in disc scalelength , with breaks more frequently seen than in previous studies , owing in large part to the extremely deep near-infrared imaging .
A number of these surface brightness profile breaks may be due to stellar halos , up to 7 galaxies out of the full sample of 92 galaxies , and we explore these implications in relation to current cosmological models .
We also report the discovery of a new tidal stream near NGC 3953 .