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For refcode 1992A&AS...94..327T:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
1992A&AS...94..327T Properties of nearby clusters of galaxies. I. A 195, A 465, A 1185, A 1213, A 1413, A 1775, A 2319 and A 2597 D. Trevese, P. Flin, L. Migliori, P. Hickson and G. Pittella Istituto Astronomico Universita di Roma "La Sapienza", Via G.M. Lancisi 29,1-00161 Roma, Italy Center for Interdisciplinary Studies, Ul. Kanonicza 20,31002 Cracow, Poland Department of Geophysics and Astronomy, University of British Columbia, 2219 Main Mall, Vancouver, BC, V6T1Z4, Canada Osservatorio Astronomico di Roma, Viale del Parco Mellini 84,1-00136 Roma, Italy Received July 30; accepted October 30, 1991 Abstract. - A study of the properties of nearby clusters of galaxies has been undertaken. This paper describes the data, derived from automated scans of photographic plates. Different methods for the evaluation of cluster center, ellipticity and orientation are compared and errors are estimated by Monte Carlo simulations. We present the results of the analysis of 1256 galaxies brighter than m3 + 3 in eight Abell clusters. We find that different methods give consistent estimates of ellipticity and orientation, provided the radial dependence of these quantities is taken into account. We also find that central densities are consistent with isothermal fits if the center is selected as the baricenter of the cluster. For each galaxy, rectangular coordinates, magnitude, size, ellipticity and orientation are given. For each cluster we provide identification maps and contour maps of galaxy surface density. Key words: clusters: of galaxies - cosmology - galaxies: general - image processing.
Retrieve 1364 NED objects in this reference.
Please click here for ADS abstract

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