ARE THE PERSEUS-PISCES CHAIN AND THE PAVO-INDUS WALL CONNECTED

In this paper we present a new redshift survey undertaken to address t he rather interesting question that arises when all the currently avai lable redshift information from the LEDA data base is plotted in 'hype rgalactic' coordinates. A significant empty region was found between t he southern Pavo-Indus (PI) wall and the northern Perseus-Pisces (PP) chain. This survey tests the reality of this void which may simply ref lect previously poor sampling of the galaxies in this region. Redshift s for a magnitude-selected sample of 379 galaxies were obtained coveri ng the four UKST/SERC survey fields: #537, #470, #346 and #290 with 15 .5 less than or equal to B-T less than or equal to 17.0 mag. All redsh ifts were obtained with the FLAIR multi-object spectroscopy system on the 1.2-m UK Schmidt Telescope at Siding Spring, Australia. Two highly significant density enhancements were found in the galaxy distributio n at 133 and 200 Mpc (H-0=75 km s(-1) Mpc(-1)). We claim that no conne ction exists between PP and PI. However, a southern extension of PP wa s detected and makes the total length of this chain more than 150 Mpc.