Department of Physics

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Illuminating the Properties of Dark Matter: X-ray and Phase Space Density Constraints

Nov 6, 2013

Speaker: Dr. Casey Watson
Date: Tuesday, November 19, 2013
Time: 4 PM
Room: 205 Currens Hall

Illuminating the Properties of Dark Matter: X-ray and Phase Space Density Constraints


After reviewing the basics of sterile neutrino production and their interactions with Standard Model particles, I will provide an overview of X-ray constraints on the mass and mixing of this excellent dark matter particle candidate. I will then turn to more general phase space density arguments, and describe how they can be used constrain the mass of the dark matter particle in the context of Milky Way dwarf satellite galaxies. The data for the study on dwarf satellite galaxies was drawn from research conducted by Matt Walker, currently Assistant Professor at Carnegie Mellon University and a graduate in physics/philosophy at WIU (1999)

About the speaker:
Casey completed his PhD and a brief postdoctoral appointment at The Ohio State University in 2006, and joined the faculty at Millikin University as an Assistant Professor in the Department of Physics and Astronomy in the fall of the same year. He was promoted to Associate Professor in 2012. Casey enjoys working on many aspects of cosmology and astrophysics including the multi-wavelength (optical, IR, X-ray) evolution of galaxies, AGN and the Star Formation Rate, dark matter, dark energy, gravitational lensing, and stellar evolution. Most recently, he has focused exclusively on dark matter research, which has generated many student presentations at regional and national meetings, a publication with a Millikin student (Nick Polley; 2012), and two back-to-back invitations to deliver one hour lectures on his work in Paris, France (June, 2012; July 2013).

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