The Arecibo L-Band Feed Array Zone of Avoidance (ALFA ZOA) Deep Survey is the deepest and most sensitive blind Hi survey undertaken in the ZOA. ALFA ZOA Deep will cover about 300 square degrees of sky behind the Galactic plane in both the inner (30 deg < l < 75 deg; b < |2 deg|) and outer (175 deg < l < 207 deg; -2 deg < b < +1 deg) Galaxy, using the Arecibo Radio Telescope. First results from the survey have found 61 galaxies within a 15 square degree area centered on l = 192 deg and b = -2 deg. The survey reached its expected sensitivity of rms = 1 mJy at 9 km/s channel resolution, and is shown to be complete above integrated flux, F_HI = 0.5 Jy km/s. The positional accuracy of the survey is 28 arcsec and detections are found out to a recessional velocity of nearly 19,000 km/s. The survey confirms the extent of the Orion and Abell 539 clusters behind the plane of the Milky Way and discovers expansive voids, at 10,000 km/s and 18,000 km/s. 26 detections (43%) have a counterpart in the literature, but only two of these have known redshift. Counterparts are 20% less common beyond v_hel = 10,000 km/s and 33% less common at extinctions higher than AB = 3.5 mag. ALFA ZOA Deep survey is able to probe large scale structure beyond redshifts that even the most modern wide-angle surveys have been able to detect in the Zone of Avoidance at any wavelength.

翻译：Arecibo L-Band Form Array Array区(ALFA ZOA) 深度勘测是ZOA中进行的最深和最敏感、最敏感的盲人Hi调查。ALFA ZOA Deep将覆盖银河平面后面大约300平方度的天空,包括内部(30度 < l < 75度;b < +2 deg ⁇ )和外部(175度 < l < 207 deg; -2 deg < b < dreal +1 deg))银河(175度 < l < 20 deg > ; - 2 deg < b - dretag < b > +1 deg),使用Arecibo无线电望远镜以外的最深和最深最深最深、最深、最深的星系的星系,在15平方位范围内发现61个星系中的星系系,在10 000米/平方英里的普通探测中,在10 000公里后方位/方向上,在10 000公里的常规探测范围为10 000次。