AD Leo from X-Rays to Radio: Are Flares Responsible for the Heating of Stellar Coronae?

M. Guedel, M. Audard, E. F. Guinan +4

In spring 1999, a long coordinated observing campaign was performed on the flare star AD Leo, including {\it EUVE}, {\it BeppoSAX}, the {\it VLA}, and optical telescopes. The campa…