Testing the Link Between Terrestrial Climate Change and Galactic Spiral Arm Transit
Issue Date
2010-04-19Author
Overholt, Andrew
Publisher
University of Kansas
Format
15 pages
Type
Thesis
Degree Level
M.S.
Discipline
Physics & Astronomy
Rights
This item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author.
Metadata
Show full item recordAbstract
We re-examine past suggestions of a close link between terrestrial climate change and the Sun's transit of spiral arms in its path through the Milky Way galaxy. These links produced concrete fits, deriving the unknown spiral pattern speed from terrestrial climate correlations. We test these fits against new data on spiral structure based on CO data that does not make simplifying assumptions about symmetry and circular rotation. If we compare the times of these transits to changes in the climate of Earth, not only do the claimed correlations disappear, but also we find that they cannot be resurrected for any reasonable pattern speed.
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- Physics & Astronomy Dissertations and Theses [121]
- Theses [3906]
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