Publication Date


Advisor(s) - Committee Chair

Al Fennelly, Thomas Bohuski, Ed Dorman

Degree Program

Department of Physics and Astronomy

Degree Type

Master of Science


We review the evidence for existence of a magnetic field of the galaxy and whatever evidence there is of an intergalactic magnetoionic medium. We then consider the magnetohydrodynamics (MHD) of such a medium. The formation of galaxies through purely gravitational means in an expanding universe is then reviewed. Next the role of magnetohydrodynamics in such a universe is analyzed for their effects on galaxy formation. Finally, the importance of MED behavior in the early universe is emphasized from physical considerations and from present day evidence. Appendices discuss isotropic cosmologies, magnetic fields in such a background, the detailed MHD perturbations, and similar MHD studies.


Astrophysics and Astronomy | External Galaxies | Physical Sciences and Mathematics