Optical search limit and preferred position angles of galaxies in 35 clusters

Details Optical search limit and preferred position angles of galaxies in 35 clusters Optical search limit and preferred position angles of galaxies in 35 clusters

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010basi...38..165a&link_type=abstract

Bulletin of the Astronomical Soceity of India, Vol. 38, p. 165-184, 2010

Statistics

2

Catalogues, Surveys, Galaxies: Clusters: General, Galaxies: Distances And Redshifts, Galaxies: Evolution, Galaxies: Statistics

Scientific paper

We worked on POSSII and ESO films and measured the diameters and position angles of 6244 galaxies in 35 clusters using a 25-fold magnification microscope. The optical search limit has been estimated for these clusters. The position angle distributions of galaxies in the clusters have been studied. For this, chi-square, auto-correlation and the Fourier tests have been carried out. A dependence has been noticed between the optical search limit and the mean radial velocity of the cluster. The preferred position angle distribution of galaxies in the cluster has been found to be independent of the mean radial velocity of the cluster. Possible explanations of the result are discussed.

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