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astro-ph2002
Recent CHANDRA and XMM observations of two very different galaxy clusters: RBS797 and CL 0939+4713
E. De Filippis, S. Schindler, A. Castillo-Morales
RBS797 and CL 0939+4713 are two intermediate red-shift clusters (). They have very different morphologies but both show surprisingly interesting structures. RBS797 loo…
astro-ph2000
Groups and clusters detection on DPOSS catalogs
E. Puddu, E. De Filippis, V. Strazzullo +5
We discuss the implementation and validation of a procedure aimed to detect groups and clusters of galaxies in DPOSS catalogs.
astro-ph1999
The Multiplicity Function of groups of galaxies from CRoNaRio catalogues
E. De Filippis, G. Longo, S. Andreon +4
The projected multiplicity function of galaxies gives (per square degree) the density of galaxy aggregates formed by N members. We use the CRoNaRio matched catalogues to derive the…