Surface photometry of the dominant galaxies in poor clusters

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dc.contributor.advisor West, Michael J.
dc.creator Fuller, Todd M.
dc.date.accessioned 2011-05-09T12:32:25Z
dc.date.available 2011-05-09T12:32:25Z
dc.date.issued 1996
dc.identifier.other QB858.7 F85 1996
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/22611
dc.description viii, 113 leaves : ill. ; 28 cm.
dc.description Includes abstract.
dc.description Includes bibliographical references (leaves 90-93).
dc.description.abstract Surface photometry in B and R is presented for seven brightest cluster galaxies (BCGs) in poor clusters. The primary goal was to detect diffuse envelopes around the BCGs to determine if they are genuine cD galaxies, which have a diffuse stellar envelope that manifests itself as a break in the brightness profile. The poor cluster BCGs did show breaks in their profiles, but these occurred at brighter magnitudes than in cDs and hence was likely produced by a systematic overestimation of the sky intensity. Based on the de Vaucouleurs parameters the poor cluster BCGs are D galaxies, which lack envelopes. Both poor cluster BCGs and rich cluster cD galaxies show similar isophotal flattening and major axis alignments, and therefore must share common formation processes independent of cluster richness. However, since the poor cluster BCGs likely do not have envelopes, a rich cluster environment is necessary for envelope formation.
dc.language.iso en
dc.publisher Halifax, N.S. : Saint Mary's University
dc.subject.lcc QB858.7
dc.subject.lcsh Astronomical photometry
dc.subject.lcsh Galaxies -- Clusters -- Observations
dc.subject.lcsh Superclusters -- Observations
dc.title Surface photometry of the dominant galaxies in poor clusters
dc.type Text
thesis.degree.name Master of Science in Astronomy
thesis.degree.level Masters
thesis.degree.discipline Astronomy and Physics
thesis.degree.grantor Saint Mary's University (Halifax, N.S.)


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