Aaron Steffen BIO Aaron Steffen is an associate professor in the Department of Physics and Astronomy at the UW-Stevens Point at Wausau campus. Steffen’s dissertation for his astronomy Ph.D. was “A Wide-Field X-ray Survey of the Lockman Hole.” He studied at UW-Madison and managed the university’s Pine Bluff Observatory where he supervised a staff of undergraduates and lived on-site. Steffen was director of the former UW-Marathon County, Wausau campus, planetarium. RESEARCH INTERESTS Scholarship of teaching and learning Study of extrasolar planets Study of properties and evolution of supermassive black holes in active galaxies PUBLICATIONS Steffen, A. T., Brandt, W. N., Alexander, D. M., Gallagher, S. C., & Lehmer, B. D. (2007). “Chandra Stacking Constraints on the Contribution of 24 μm Spitzer Sources to the Unresolved Cosmic X-ray Background.” The Astrophysical Journal Letters. 667, 25–28. https://doi.org/10.1086/522046 I like to both wow students with astronomical concepts and to see the ‘Ah…’ moment when I attach a physics concept to something in their everyday lives. -Aaron Steffen QUOTE “What’s so amazing that keeps us stargazing, and what do we think we might see?” – Kermit the Frog LAST BOOK READ “The Glass Universe” by Dava Dobel ADVICE Wear sunscreen! Associate Professor of Physics and Astronomy Office: 384A Wausau campus Phone: 715-600-1099 Email: aaron.steffen@uwsp.edu Education Ph.D. - Astronomy University of Wisconsin-Madison M.S. - Astronomy University of Wisconsin-Madison B.S. - Physics and Mathematics University of Wisconsin-Eau Claire Courses College Physics I & II Modern Physics Stars and Stellar Systems University Physics I & II