Study of a field in the Coma supercluster. I - Automated galaxies count

Details Study of a field in the Coma supercluster. I - Automated galaxies count Study of a field in the Coma supercluster. I - Automated galaxies count

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26as...74...83s&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 74, no. 1, July 1988, p. 83-106.

Astronomy and Astrophysics

Astrophysics

8

Astronomical Catalogs, Astronomical Photometry, Galactic Clusters, Galactic Structure, Image Analysis, Schmidt Telescopes

Scientific paper

The existence of a filament of galaxies was shown by Fontanelli (1984) in the Coma cluster region. This paper concerns the study of a IIIaJ Palomar Schmidt plate of the Eastern end of this filament. All the non-stellar objects were identified. The catalogue gives coordinates, magnitudes, area in pixels, and morphological types for 7582 galaxies. The catalogue is apparently complete down to about the 19th magnitude. The asymmetry in the distribution of the bright objects between the North-West and the South-East part of the plate found by Fontanelli (1984) is also present of the fainter objects. Galaxy condensations are identified using an image segmentation on the galaxy density map. The parameters, position, axis, and orientation of these condensations have been estimated.

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