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Proceedings Paper

Photometry Of Galaxies In An Extremely Distant Cluster
Author(s): D. Nanni; G. Pittella; D. Trevese; A. Vignato
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Paper Abstract

Results concerning the U, B and V photometry of some galaxies in the cluster Zw 1305.4+ 2941 are presented. The cluster has a redshift of 0.24 and the photometry is referred to galaxies which are inside a region of radius 1.2 Mpc from the cluster center. To obtain these resutis an automated reduction procedure was applied to the microdensitometer data obtained scanning a region of Palomar 48" plates. These procedures include : a) a segmentation process, b) a smoothing, ca calibration of the plates using standard stars profiles and magnitudes, d) star-galaxy classification.

Paper Details

Date Published: 21 November 1980
PDF: 8 pages
Proc. SPIE 0264, Applications of Digital Image Processing to Astronomy, (21 November 1980); doi: 10.1117/12.959801
Show Author Affiliations
D. Nanni, Astronomical Observatory of Rome (Rome)
G. Pittella, Astronomical Observatory of Rome (Rome)
D. Trevese, Astronomical Observatory of Rome (Rome)
A. Vignato, Astronomical Observatory of Rome (Rome)


Published in SPIE Proceedings Vol. 0264:
Applications of Digital Image Processing to Astronomy
Denis A. Elliot, Editor(s)

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