Document Type


Date of Degree

Summer 2018

Degree Name

PhD (Doctor of Philosophy)

Degree In


First Advisor

Lang, Cornelia

First Committee Member

Mutel, Robert

Second Committee Member

Spangler, Steven

Third Committee Member

Gayley, Kenneth

Fourth Committee Member

Yusef-Zadeh, Farhad


The environmental conditions in the center of the Milky Way galaxy (Central Molecular Zone; CMZ) are much more extreme than in the disk of the galaxy with molecular gas properties similar to those seen in galaxies at z~2. While the CMZ hosts several massive star clusters, the formation of stars from these dense molecular clouds and the feedback of these massive stars on the ISM is not well understood. I present in my thesis a case study of a few regions in the CMZ using VLA continuum and spectral line observations. I explore feedback eects of recent star formation (a young massive stellar cluster) on the surrounding ISM (molecular and ionized gas). Using the kinematic information of molecular and ionized gas, obtained dierent species of spectral lines, I will determine the line of sight geometry of the dierent gas components. I will then establish the relationship of these components to the larger structure of molecular gas in the CMZ.


Expanding Shell, Galactic Center, Interstellar Medium, Kinematics and Dynamics


xvi, 124 pages


Includes bibliographical references (pages 120-124).


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Copyright © 2018 Natalie Butterfield

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