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Дата изменения: Mon Dec 23 18:23:59 2013 Дата индексирования: Fri Feb 28 06:02:01 2014 Кодировка: Поисковые слова: quasar |
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Photometry of galaxies in U B V R and I | ![]() |
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We have updated this catalogue by scanning the literature and extended it by adding aperture photometry derived from published surface photometry. We also included our own unpublished measurements.
The catalogue and derived magnitudes and colours are presented in Prugniel and Héraudeau 1998, AAS 128, 299
The catalogue contains 34675 aperture measurements from diaphragm photometry and 72336 derived from surface photometry or image analysis on a total of 7567 galaxies.
The catalogue can be searched through HyperLeda (search by name or coordinates, download...), and is also available from CDS We will also send it upon request and would be glad to receive feedback about this work.
The set of curves of growth finally used is an interpolation between exponential and de Vaucouleurs profiles. The interpolation parameter is connected to the photometric type, defined to match the morphologic type (except for the diffuse elliptical galaxies for which the morphological type is -5 while the photometric type is around +10).
This work extends the effort developed for the production of the RC3 catalogue and published in:
HyperLeda | Questions: prugniel@obs.univ-lyon1.fr |