Multimass modelling of milky way globular clusters and implications on their dark remnant content and stellar initial mass function

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dc.contributor.advisor Henault-Brunet, Vincent
dc.creator Dickson, Nolan Marcus
dc.date.accessioned 2022-09-06T13:13:04Z
dc.date.available 2022-09-06T13:13:04Z
dc.date.issued 2022-08-25
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/31041
dc.description 1 online resource (xii, 227 pages) : charts (chiefly colour), graphs (chiefly colour)
dc.description Includes abstract and appendices.
dc.description Includes bibliographical references (pages 130-140).
dc.description.abstract The distribution of stars and stellar remnants within globular clusters holds clues about their formation and long-term evolution. In this work, we infer best-fitting multimass models for a number of Milky Way globular clusters, which are compared to various datasets. These models allow us to explore in detail the stellar (initial) mass functions and remnant populations of a large sample of Milky Way GCs. Examination of the low-mass mass function of the clusters suggests an IMF which is considerably flatter and depleted in low mass stars than canonical IMFs, while the high-mass IMF is consistent with a Salpeter IMF. New constraints on the number and mass in black holes for each cluster are inferred from our models, and comparisons to various studies predicting the black hole population in GCs are performed, finding generally good agreement, and in most cases no need for large populations of BHs to explain the data. en_CA
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dc.language.iso en en_CA
dc.publisher Halifax, N.S. : Saint Mary's University
dc.subject.lcsh Galaxies -- Clusters
dc.subject.lcsh Milky Way
dc.subject.lcsh Stars and stellar systems
dc.subject.lcsh Stars -- Initial mass function
dc.subject.lcsh Galaxies -- Evolution
dc.subject.lcsh Black holes (Astronomy)
dc.title Multimass modelling of milky way globular clusters and implications on their dark remnant content and stellar initial mass function en_CA
dc.type Text en_CA
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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