VizieR Online Data Catalog: The Marseille Schmidt survey I. (Surace+ 1998)
Résumé
We present data from a moderately deep spectroscopic Schmidt survey (B_lim=17.5) of ''active galaxies'' selected by the presence of emission lines in their spectra and/or their UV excess. 92 emission line objects have been found in two adjacent fields (approximately 50deg^2) in the direction of the southern extension of the Virgo cluster. We give a catalog containing positions, photographic R and B magnitudes, U-R colors, effective diameters, redshifts, equivalent widths and intensity ratios of the [OIII]λλ4959,5007, Hβ and [OII]λ3727 emission lines. On these fields, we evaluate the completeness limit of the survey at a pseudo B magnitude values of 15.7. A more elaborate astrophysical analysis will appear in a forthcoming paper. (1 data file).