Studies of the Virgo cluster based on the Virgo Photometry Catalogue

Details Studies of the Virgo cluster based on the Virgo Photometry Catalogue Studies of the Virgo cluster based on the Virgo Photometry Catalogue

1997-12-09

arxiv.org/abs/astro-ph/9712128v1

Astronomy and Astrophysics

Astrophysics

4 pages, no fig.s, Latex, no style file required, Published in: Proceedings of the 21st Century Chinese Astronomy Conference,

Scientific paper

The `Virgo Photometry Catalogue' (VPC) is the first independently calibrated general catalogue of galaxies to cover the Virgo cluster since the `Catalog of Galaxies and Clusters of Galaxies' of Zwicky et al. (1961,1963). It contains 1180 galaxies (including background objects) within a 23 square-degree region centred on the cluster's core. Photographic surface photometry is presented for 1067 galaxies in the U band, for 1020 galaxies in the B_J band and for 1020 galaxies in the R_C band. All total magnitudes and total colours are extrapolated according to a new system; denoted `t' to distinguish it from the `T' system already in use. This paper outlines: the scope of the VPC, the new extrapolation system, some recent findings based on the catalogue and further work in progress.

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