X-Ray, UV, and Optical Observations of Proxima Centauri's Stellar Cycle

B. J. Wargelin, S. H. Saar, Z. A. Irving +3

Proxima Cen (GJ 551; dM5.5e) is one of only about a dozen fully convective stars known to have a stellar cycle, and the only one to have long-term X-ray monitoring. A previous anal…