About the Author
D. W. Hoard, after earning his Ph.D. at the University of Washington, worked at Cerro Tololo Inter-American Observatory in Chile, the southern hemisphere branch of the United States? National Optical Astronomy Observatory. In 2002, he joined NASA?s Spitzer Science Center, part of the Infrared Processing and Analysis Center (IPAC) at the California Institute of Technology. He is an IPAC Research Scientist and, among other activities, a member of the Spitzer Space Telescope Science User Support Team. His research focuses on white dwarfs and their environments. He has published more than 80 reviewed papers in refereed journals.