NED Abstract 
Copyright by European Southern Observatory (ESO).
Reproduced by permission

2011A&A...532A..74B

The EFIGI catalogue of 4458 nearby galaxies with detailed morphology

Baillard, A.; Bertin, E.; de Lapparent, V.; Fouque, P.; Arnouts, S.;
Mellier, Y.; Pello, R.; Leborgne, J.-F.; Prugniel, P.; Makarov, D.;
Makarova, L.; McCracken, H. J.; Bijaoui, A.; Tasca, L.

Abstract. Context. Now that modern imaging surveys have produced large
databases of galaxy images advanced morphological studies have become
possible. This has driven the need for well-defined calibration samples. 
Aims: We present the EFIGI catalogue, a multi-wavelength database
specifically designed to densely sample all Hubble types. The catalogue
merges data from standard surveys and catalogues (Principal Galaxy
Catalogue, Sloan Digital Sky Survey, Value-Added Galaxy Catalogue,
HyperLeda, and the NASA Extragalactic Database) and provides detailed
morphological information.  Methods: Imaging data were obtained from the
SDSS DR4 in the u, g, r, i, and z bands for a sample of 4458 PGC galaxies,
whereas photometric and spectroscopic data were obtained from the SDSS DR5
catalogue. Point-spread function models were derived in all five bands.
Composite colour images of all objects were visually examined by a group
of astronomers, and galaxies were assigned positions in the Hubble
sequence and classified according to 16 morphological attributes
describing their structure, texture, environment and appearance on a
five-level scale.  Results: The EFIGI Hubble sequence is in remarkably
good agreement with the RC3 Revised Hubble Sequence. The main
characteristics and reliability of the catalogue are examined, including
photometric completeness, type mix, systematic trends and correlations. 
Conclusions: The final EFIGI database is a large sub-sample of the local
Universe which densely samples Sd, Sdm, Sm and Im types compared to
magnitude-limited catalogues. We estimate that the photometric catalogue
is more than ~ 80% complete for galaxies with 10< g < 14. More than 99.5%
of EFIGI galaxies have known redshifts in the HyperLeda and NED databases.

Key words: astronomical databases: miscellaneous, catalogs, Galaxy:
fundamental parameters, galaxies: spiral, galaxies: dwarf, galaxies:
elliptical and lenticular, cD