Research Interests: Multiwavelength observational astronomy of cataclysmic variables, nova shells, accretion disks and outflows, X-ray binaries and black holes, common envelope evolution, stellar magnetism, exoplanets, starburst galaxies, quasars, time-series analysis; also spaceflight and astronomical instrumentation.
At left: Some images from Fresno State's Campus Observatory.
If students need to see Professor Ringwald outside of office hours, please call or email first.
Email: ringwald[at]csufresno.edu and replace [at] with
Here is the department brochure that I edited. It's a pdf file that you can read with Adobe Acrobat Reader, a free program available here. Here is a recruiting slide.
Last updated 2021 August 21. Webpage by Professor Ringwald
Department of Physics, California State University, Fresno. Please read this disclaimer.