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Are the Perseus-Pisces chain and the Pavo-Indus wall connected?

Helene Di Nella·W. Couch·G. Paturel·Q. Parker
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Abstract

A significant empty region was found between the southern Pavo- Indus (PI) wall and the northern Perseus-Pisces (PP) chain. This survey tests the reality of this void which may simply reflect previous poor sampling of the galaxies in this region. Redshifts for a magnitude selected sample of 379 galaxies were obtained covering the four UKST/SERC survey fields with Bt <= 17.0. All redshifts were obtained with the FLAIR multi-object spectroscopy system on the 1.2 m U.K. Schmidt Telescope at Siding Spring, Australia. Two highly significant density enhancements were found in the galaxy distribution at 133 Mpc and 200 Mpc (Ho=75 km/s/Mpc). We claim that no connexion exists between PP and PI. However, a southern extension of PP was detected and makes the total length of this chain of more than 150 Mpc.

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Helene Di Nella, W. Couch, G. Paturel, Q. Parker. 1996-11-26. Are the Perseus-Pisces chain and the Pavo-Indus wall connected?. https://doi.org/10.1093/mnras%2F283.2.367

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