3 papers
astro-ph2002
X-ray Emission from Early-Type Galaxies in Groups and Poor Clusters
M. Paolillo
We present the study of three bright Early-Type galaxies hosted in groups or poor clusters: NGC 1399, NGC 1404 and NGC 507. We used ROSAT HRI, PSPC and, when available, higher reso…
astro-ph2001
Deep ROSAT-HRI observation of the elliptical galaxy NGC 1399
M. Paolillo, G. Fabbiano, G. Peres +1
We present the preliminary results of a deep (167 ks) ROSAT HRI observation of the cD galaxy NGC1399 in the Fornax cluster. We find, in agreement with previous observations, an ext…
astro-ph1999
An automatic procedure to extract galaxy clusters from CRoNaRio catalogs
E. Puddu, S. Andreon, G. Longo +6
We present preliminary results of a simple peak finding algorithm applied to catalogues of galaxies, extracted from the Second Palomar Sky Survey in the framework of the CRoNaRio p…