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About the Authors

Bradley W. Carroll received his B.A. in Mathematics and a Secondary Teaching Credential from the University of California, Irvine, his M.S. in Physics from the University of Colorado, Boulder and his Ph.D. Astrophysics from the University of Colorado, Boulder.

Brad's lifelong fascination with astronomy, combined with a happy naiveté concerning what lay ahead, led him to graduate school at CU Boulder. His thesis, supervised by Carl Hansen and John Cox, was a study of the effect of rotation on pulsating stars. Brad then headed east to work as a postdoc with Hugh Van Horn at the University of Rochester, where he carried out research on the oscillations of accretion disks and neutron stars. At both CU Boulder and Rochester, he learned the virtues of making simple models of complex astrophysical systems.

Four years later, as his postdoc came to an end, Brad was lucky to find a teaching position in the Physics Department at Weber State University, and doubly lucky that Dale Ostlie was there. It is rare to find two experts in stellar pulsation in the same institution and department, especially when their outlooks are congenial.

Brad currently serves as the Physics Department chair at Weber State. When not kept busy with academic duties and strenuous publishing deadlines, Brad enjoys traveling, camping, and fishing.


Dale A. Ostlie's long-time interest in astronomy began with his childhood fascination in the space program, including vivid recollections of watching the Apollo missions with his family. His interest in teaching was born from his experiences as a student, being fortunate to have had excellent instructors and mentors in high school, college, and graduate school. During graduate school, Dale had the opportunity to spend a significant period of time working with Dr. Arthur N. Cox and the theoretical astrophysics group at Los Alamos National Laboratory. While at Los Alamos, Dale was introduced to great number of exciting and challenging problems in astrophysics, which spurred his interest in developing a broad exposure to the discipline.

Dale received his B.A. from St. Olaf College in Northfield, MN with degrees in Physics and Mathematics, and his Ph.D. in astrophysics from Iowa State University. After completing his graduate thesis on Mira variable stars, and after a two-year teaching position at Bates College in Maine, Dale accepted a teaching position at Weber State University. One year after Dale arrived at Weber State, Brad Carroll was hired, and their partnership in stellar pulsation studies and textbook writing was born. Since then, Dale and Brad have worked tirelessly to produce the most up-to-date and effective textbooks on astrophysics, inspired by their mutual dedication to effective student learning and love of teaching.

Dale currently serves as the Dean of the College of Science at Weber State. When he can take a (rare) break from advising students and answering e-mails from his publisher, he enjoys skiing, hiking, camping, and mountain biking.






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