CORRELATIONS AND SCALING IN THE QDOT REDSHIFT SURVEY

Citation
Vj. Martinez et P. Coles, CORRELATIONS AND SCALING IN THE QDOT REDSHIFT SURVEY, The Astrophysical journal, 437(2), 1994, pp. 550-555
Citations number
25
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
0004637X
Volume
437
Issue
2
Year of publication
1994
Part
1
Pages
550 - 555
Database
ISI
SICI code
0004-637X(1994)437:2<550:CASITQ>2.0.ZU;2-X
Abstract
We have calculated the redshift space two-point correlation function, xi(r), for galaxies in the QDOT redshift survey. In the range 1-30 h(- 1) Mpc, the data are well described by a power law xi(r) similar or eq ual to (r/r(0))(-1) with gamma = 1.27 +/- 0.11 and r(0) = 4.82 +/- 0.8 1 h(-1) Mpc. Furthermore, we find that the sample exhibits clear multi fractal scaling properties, but with dimensions different from those e xtracted from the CfA survey. For example, D-0 = 2.90, D-2 = 2.77 for QDOT on large scales (>10 h(-1) Mpc), compared with 2.1 and 1.3 obtain ed from the CfA survey; on small scales (<10 h(-1) Mpc), the correlati on dimension for QDOT galaxies is D-2 similar or equal to 2.25. The di fferences in these values between the QDOT data on large and small sca les, and between the QDOT and CfA data, provide further evidence that multifractal scaling properties are a useful diagnostic of the dynamic s of galaxy clustering.