6533b872fe1ef96bd12d434b
RESEARCH PRODUCT
Problems of Clustering of Radiogalaxies
Wlodzimierz GodlowskiAgnieszka PolloJacek Golbiaksubject
PhysicsActive galactic nucleusCosmology and Nongalactic Astrophysics (astro-ph.CO)AutocorrelationFOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsSpace (mathematics)Power lawGalaxyRedshiftCorrelation function (statistical mechanics)Space and Planetary Scienceautocorrelation functionradiogalaxiesCluster analysisAstrophysics::Galaxy AstrophysicsAstrophysics - Cosmology and Nongalactic Astrophysicsdescription
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 $\xi(s)$ can be approximated by the power law with the correlation length $\sim 3.75h^{-1}$Mpc and slope $\gamma \sim 1.8$. 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 $\Xi(r)$ displays possible differences in the clustering properties between active galactic nuclei (AGN) and starburst (SB) galaxies.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-10-22 |