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For refcode 1994AJ....108.1567J:
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1994AJ....108.1567J HUBBLE SPACE TELESCOPE PHOTOMETRY OF THE CENTRAL REGIONS OF VIRGO CLUSTER ELLIPTICAL GALAXIES. I. OBSERVATIONS, DISCUSSION, AND CONCLUSIONS WALTER JAFFE Leiden Observatory, Leiden, The Netherlands Electronic mail: jaffe@strw.leidenuniv.nl HOLLAND C. FORD Johns Hopkins University, Space Telescope Science Institute, Baltimore, Maryland 21218 Electronic mail: ford@jhufos.pha.jhu.edu ROBERT W. O'CONNELL University of Virginia, Charlottesville, Virginia 22903 Electronic mail: rwo@perseus.astro.virginia.edu FRANK C. VAN DEN BOSCH Leiden Observatory, Leiden, The Netherlands Electronic mail: vdbosch@strw.leidenuniv.nl LAURA FERRARESE Johns Hopkins University, Space Telescope Science Institute, Baltimore, Maryland 21218 Electronic mail: ferrares@jhufos.pha.jhu.edu Received 1994 March 9; revised 1994 June 17 ABSTRACT Using the Hubble Space Telescope we have observed at 10 pc resolution the nuclei of a luminosity-limited sample of 14 E and E/S0 galaxies in the Virgo Cluster with magnitudes B_T_ = 9.4 to 13.4. In this paper we present the images, and discuss the results of the detailed analysis of the surface photometry given in two companion papers. We find that the nuclear and near-nuclear morphologies confirm and strengthen the previously recognized dichotomy of "E" galaxies into "true" and "disky" subtypes. The latter, usually classified E4 or later, often show a bright nuclear disk of radius ~100 pc. Essentially all early-type galaxies with -18 > M_B_ > -20 are disky. Most true E galaxies are classified E4 or earlier. Most galaxies of both types show dust in the nuclear regions, the most remarkable example being a compact dust disk in NGC 4261. Other than dust, no anomalies were detected in the centers of the three galaxies in our sample which show clear kinematic evidence for a decoupled component.
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