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Permanent link (DOI): https://doi.org/10.7939/R3F47H26X

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Diffuse Molecular Gas in the Cygnus X Star Forming Region and its Effect on the Star Formation Law Open Access

Descriptions

Other title
Subject/Keyword
Cygnus X
Star Formation Rate
W80
Molecular Gas
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Green, Kaylie
Supervisor and department
Rosolowsky, Erik (Physics)
Kothes, Roland (Physics)
Examining committee member and department
Kothes, Roland (Physics)
Sivakoff, Gregory (Physics)
Marchand, Richard (Physics)
Rosolowsky, Erik (Physics)
Department
Department of Physics
Specialization

Date accepted
2015-08-26T09:34:56Z
Graduation date
2015-11
Degree
Master of Science
Degree level
Master's
Abstract
Observations of star forming regions in our Milky Way show that there are two different forms of molecular gas: bright star forming molecular clouds and large diffuse clouds. What is not yet known is the difference in physical properties between these two types of molecular gas and the contribution of these diffuse clouds to the star formation efficiency in our galaxy. In this thesis I identify physical properties of low surface brightness gas in the nearby star forming regions of Cygnus X and W80, and explore the presence of these diffuse clouds as solutions to the increased efficiency of star formation observed in local clouds. I find that these low surface brightness clouds do not contribute in a significant way to the total molecular gas mass of the region. I also find that the method used for tracing star formation has a larger effect on the calculation of large scale star formation rate than previously thought.
Language
English
DOI
doi:10.7939/R3F47H26X
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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