A UBV study of the field of NGC 7790

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dc.contributor.advisor Mitchell, George Ferguson, 1941-
dc.creator Takala, John Michael
dc.date.accessioned 2011-05-09T12:31:25Z
dc.date.available 2011-05-09T12:31:25Z
dc.date.issued 1988
dc.identifier.other QB813 T34 1988
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/22086
dc.description vi, 106 leaves : ill. ; 28 cm.
dc.description Bibliography: leaves 102-105.
dc.description.abstract This thesis presents a UBV study of the field of the open cluster NGC 7790, which has three Cepheids within its boundaries. Photographic plates taken at CFHT were measured on an Astromechanics Iris Photometer. The distance modulus of the cluster was found to be 12.25 [plus-minus sign] 0.10. A trend in reddening with spectral type was detected; (E [subscript B-V] = 0.40 [plus-minus sign] 0.06 s.d. for stars with (B-V) [subscript zero] > 0.10 and (E [subscript B-V]) = 0.57 [plus-minus sign] 0.07 s.d. for stars with (B-V) [subscript zero] <0.10. The implied luminosities of the Cepheids in NGC 7790 from the calculated cluster distance are in agreement with recent calibrations of the period-luminosity and period-luminosity-colour relations.
dc.description.provenance Made available in DSpace on 2011-05-09T12:31:25Z (GMT). No. of bitstreams: 0 en
dc.language.iso en
dc.publisher Halifax, N.S. : Saint Mary's University
dc.subject.lcc QB813
dc.subject.lcsh Parallax -- Stars
dc.subject.lcsh Stars -- Photographic measurements
dc.subject.lcsh Stars -- Open clusters
dc.subject.lcsh Cepheids
dc.title A UBV study of the field of NGC 7790
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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