A study of the double galaxy in Abell Cluster 1775

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dc.creator Hayes, Jeffrey J. E.(Jeffrey John Edward),1957-
dc.date.accessioned 2011-05-09T12:31:24Z
dc.date.available 2011-05-09T12:31:24Z
dc.date.issued 1981
dc.identifier.other QB857 H38
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/22073
dc.description iii, 98 leaves, 40 folded leaves : ill., charts ; 28 cm.
dc.description Charts on folded leaves in pocket.
dc.description 'References': leaves 97-98.
dc.description.abstract Photographic and photoelectric photometry are used to obtain intensity profiles of the A1775 double galaxy. The intensity profiles are fitted to the standard (c = 2.25) King models, from which composite models are constructed. The apparent core radii of the SE and NW components are found to be 2.4 kpc and 3.9 kpc respectively (H[subscript o] = 75 km/sec/Mpc). The composite models consist of isophotal contour maps and a modeled surface brightness profile along the line joining the two components. The models constructed do not fit the data very well in the outer portions of the brightness profile, in that they overestimate the amount of light coming from these regions. On the basis of the models however, it seems unlikely that the A1775 system is a superposition of two unrelated galaxies, but is more likely to be some sort of interacting system. The nature of the interaction, however, cannot be answered, nor can the existence of a large diffuse halo be demonstrated on the basis of the present data.
dc.description.provenance Made available in DSpace on 2011-05-09T12:31:24Z (GMT). No. of bitstreams: 0 en
dc.language.iso en
dc.publisher Halifax, N.S. : Saint Mary's University
dc.subject.lcc QB857
dc.subject.lcsh Astronomical photography -- Observations
dc.subject.lcsh Astronomical models
dc.subject.lcsh Astronomical photometry -- Observations
dc.title A study of the double galaxy in Abell Cluster 1775
dc.type Text
thesis.degree.name Master of Science in Astronomy
thesis.degree.level Masters
thesis.degree.discipline Astronomy
thesis.degree.grantor Saint Mary's University (Halifax, N.S.)
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