Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.211..637m&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 211, Dec. 1, 1984, p. 637-658.
Astronomy and Astrophysics
Astronomy
9
Astronomical Spectroscopy, Charge Coupled Devices, Galactic Clusters, X Ray Astronomy, Data Acquisition, Data Reduction, Density Distribution, Emission Spectra, Radial Distribution, Spectrum Analysis
Scientific paper
A CCD camera survey has been conducted of the X-ray emitting regions of a sample of clusters of galaxies. This sample includes at least one cluster from each of the classes in the new Forman-Jones classification scheme (Forman & Jones 1982). In this paper, the techniques used toobtain, reduce and analyse the data are presented, along with results for the cluster Abell 85. For the central X-ray emitting region of this cluster, a core radius of between 1.2 and 1.6 Mpc is estimated from the galaxy radial number density distribution. The properties of the galaxies in the core of this cluster are significantly different from those of the galaxies in the outer regions of the area covered in the survey, in terms of luminosity function and colour distribution.
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