Problems of Clustering of Radiogalaxies

We present the preliminary analysis of clustering of a sample of 1157 radio-identified galaxies from Machalski & Condon (1999). We found that for separations 2–15 h−1 Mpc their redshift space autocorrelation function ξ(s) can be approximated by the power law with the correlation length ~3.75h−1...

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Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2012-08, Vol.8 (S290), p.215-216
Main Authors: Godłowski, Włodzimierz, Pollo, Agnieszka, Golbiak, Jacek
Format: Article
Language:English
Subjects:
Astronomy
Cluster analysis
Contributed Papers
Radio astronomy
Stars & galaxies
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Summary:We present the preliminary analysis of clustering of a sample of 1157 radio-identified galaxies from Machalski & Condon (1999). We found that for separations 2–15 h−1 Mpc their redshift space autocorrelation function ξ(s) can be approximated by the power law with the correlation length ~3.75h−1 Mpc and slope γ ~ 1.8. The correlation length for radiogalaxies is found to be lower and the slope steeper than the corresponding parameters of the control sample of optically observed galaxies. Analysis the projected correlation function Ξ(r) displays possible differences in the clustering properties between active galactic nuclei (AGN) and starburst (SB) galaxies.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921312019680