Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.258..134s&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 258, no. 1, Sept. 1, 1992, p. 134-146. Research support
Astronomy and Astrophysics
Astronomy
149
Cross Correlation, Galactic Clusters, Infrared Astronomy Satellite, Red Shift, Astronomical Catalogs, Infrared Astronomy
Scientific paper
A cross-correlation technique is used to compute the spatial correlation function (SCF) of IRAS galaxies on scales of 0.1-30/h Mpc. The SCF is evaluated by cross-correlating IRAS galaxies with measured redshifts and a 2D catalog of IRAS galaxies. The SCF is described as a power law, and rms mass-density variation is given for 8/h MPC spheres at 0.58 +/- 0.11 by incorporating data on the biasing of IRAS galaxies. The results are compared with the data from a redshift survey, and good agreement is noted in terms of clustering and large-scale biasing levels. The correlation function of IRAS galaxies appears to be shallower than that for optically selected galaxies which sheds light on the weak small-scale and strong large-scale clustering that typifies the IRAS galaxies. The SCF determined in this paper is based on a large number of galaxies and is not affected by redshift-space distortion.
Lawrence Andy
Rowan-Robinson Michael
Saunders Will
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