A COMPLETE SOUTHERN SKY REDSHIFT SURVEY

Citation
Ln. Dacosta et al., A COMPLETE SOUTHERN SKY REDSHIFT SURVEY, The Astrophysical journal, 424(1), 1994, pp. 120000001-120000004
Citations number
29
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
0004637X
Volume
424
Issue
1
Year of publication
1994
Part
2
Pages
120000001 - 120000004
Database
ISI
SICI code
0004-637X(1994)424:1<120000001:ACSSRS>2.0.ZU;2-E
Abstract
We discuss a magnitude-limited redshift survey covering a region aroun d the south Galactic pole (SSRS2). The survey includes 3592 galaxies a nd covers a region of 1.13 sr to a limiting m(B(0)) = 15.5, directly c omparable to CfA2. Together, CfA2 and SSR2 cover more than a third of the sky. The northern and southern surveys are remarkably similar. Bot h contain voids with diameters as large as 5000 km s-1. The southern s urvey contains the Southern Wall, similar to the northern Great Wall. The distributions of velocity dispersions for systems extracted from t he SSRS2 and CfA2 surveys are also remarkably similar. For the SSRS2, an inhomogeneity-independent technique yields Schechter luminosity fun ction parameters M = -19.50 and alpha = -1.20 (H0 = 100 h km s-1 Mpc- 1; h = 1 unless otherwise specified). The steep faintend slope is prob ably attributable to bluer galaxies. By examining the normalized densi ty fluctuations in the SSRS2 and CfA2 surveys, we suggest that the com bined sample is not yet large enough to be ''fair.'' There are large f luctuations in shells at 10,000 km s-1.