Graduation Year
2008
Document Type
Open Access Senior Thesis
Degree Name
Bachelor of Science
Department
Physics & Astronomy
Reader 1
Philip Choi
Terms of Use & License Information
Rights Information
© 2008 Kristen Petrillo
Abstract
This paper examined a few different types of interacting galaxies and the implications the data has on cosmological theories. An analysis of the Holmberg Effect, Holmberg (1969)’s observation that companion galaxies tend to be near the poles of edge-on galaxies rather than in the planes, was done by reexamining the spirals viewed by Holmberg. Only using radial velocity confirmed companions to test for this effect showed that if anything, the opposite of the Holmberg effect is true. However, due to small number statistics, more edge-on spirals and their companions would have to be viewed in order to determine if this is an actual physical effect of anisotropic companion distribution around primary galaxies. It is important to discover if there is a preferred distribution, because it could point to the distribution of dark matter around the primary galaxies, and have interesting impacts on large-scale universal structure and cosmology theory.
Recommended Citation
Petrillo, Kristen, "A Study of Interacanding and Companion Galaxies: Implications for Cosmology" (2008). Pomona Senior Theses. 28.
https://scholarship.claremont.edu/pomona_theses/28
Comments
Previously linked to as: http://ccdl.libraries.claremont.edu/u?/stc,47
OCLC number: 549439184