Ph.D., Dartmouth College
Areas of Expertise and Interest
Astronomy research at Fresno State is carried out by Professor Ringwald and his students. It is mainly about cataclysmic variable binary stars and related objects. These include novae, black holes and neutron stars, white dwarfs and hot subdwarfs, and the physics of their accretion disks and outflows. Other research interests include common envelope evolution, stellar magnetism, stellar winds, flare stars, and exoplanets. Fresno State has two observatories. The Campus Observatory, on the grounds of the Downing Planetarium, is where students get hands-on experience with astronomical instrumentation. Fresno State's station at Sierra Remote Observatories, 47 miles from campus at a superb, dark site in the Sierra Nevada mountains, is operated mainly by remote control from campus over the Internet. Professor Ringwald welcomes ideas from students wanting to do their own research projects, especially if they can be carried out with the equipment we have now.
1. A recent refereed paper, which lists three Fresno State students as co-authors, is here:
2. A second recent refereed paper, which also lists three Fresno State students as co-authors, is here: