Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26as..133..171s&link_type=abstract
Astronomy and Astrophysics Supplement, v.133, p.171-179
Astronomy and Astrophysics
Astrophysics
16
Surveys, Galaxies: General, Galaxies: Starburst, Methods: Data Analysis
Scientific paper
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. 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 50 deg(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]<~mbda<~mbda 4959,5007, H_beta and [OII]<~mbda 3727 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. The table is also available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html} for active star-forming galaxies. Finding charts, including information on star formation location is available in electronic form via http://www.edpsciences.com
Comte Georges
Surace Christian
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