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Hans Publishers, Astronomy & Astrophysics, 3(365), p. 370-391

DOI: 10.1051/0004-6361:20000153

EDP Sciences, Astronomy and Astrophysics Supplement Series, 3(141), p. 409-421

DOI: 10.1051/aas:2000323

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Optical photometry of the UCM Lists I and II: II-B band surface photometry and morphological discussion

Journal article published in 2000 by P. G. Pérez-González, P. G. P�rez-Gonz�lez, J. M. Gallego, J. Zamorano, A. G. De Paz ORCID, A. Gil de Paz
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

We present Johnson B surface photometry for the UCM Survey galaxies. One-dimensional bulge-disk decomposition is attempted, discussing on fitting functions and computational procedures. The results from this decomposition, jointly with concentration indices and an asymmetry coefficient, are employed to study the morphological properties of these galaxies. We also compare our results with the previous morphological classification established using Gunn r imaging data and with other samples of galaxies. No major statistical differences in morphology are found between red and blue data, although some characteristics such as size and luminosity concentration vary. We find a correlation between luminosity and size. Several parameters are used to segregate the objects according to their morphological type. Comment: 19 pages, 20 PostScript figures, accepted for publication in A&A, also available via anonymous ftp at ftp://cutrex.fis.ucm.es/pub/OUT/pag/PAPERS/AA00