Astron. Astrophys. Suppl. Ser. 133, 171-179
C. Surace1,2 - G. Comte2
Send offprint request: C. Surace
1 - Max Planck Institut für Astronomie,
Königstuhl 17, D-69117 Heidelberg, Germany
e-mail: surace@mpia-hd.mpg.de
2 -
Observatoire de Marseille et Institut Gassendi,
2 place Le Verrier, 13248 Marseille, France
Received February 11; accepted June 4, 1998
We present data from a moderately deep spectroscopic Schmidt survey
( = 17.5) of "active galaxies'' selected by the presence of
emission lines in their spectra and/or their UV excess.
The redshift, magnitudes, color and diameter reduction methods have been
discussed in a previous paper. Here we explain the emission line equivalent
width determination method.
92 emission line objects have been found in two adjacent fields
(approximately ) 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]
, H
and
[OII]
emission lines.
On these fields,
we evaluate the completeness limit of the survey at a pseudo B magnitude
value of 15.7.
A more elaborate astrophysical analysis will appear in a forthcoming paper.
Key words: surveys -- galaxies: general -- galaxies: starburst -- methods: data analysis
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