Dr. Douglas Swartz received a Ph.D. in Physics from the University of Texas at Austin in 1989. He has served as a Research Scientist for the Chandra Project Science team, headquartered at MSFC, since 1995. His studies in X-ray astrophysics include Ultraluminous X-ray sources, the growth and evolution of nearby galaxies, and pulsar wind nebulae. He has over 90 publications in refereed scientific journals. Dr. Swartz supports the calibration and data analysis efforts for HEROES.