Coronal X-ray emission of II Peg: the BeppoSAX view

Abstract The Beppo SAX observation of II Peg confirms that this is a very active coronal source, with a possible detection of the decay of a strong X-ray flare. The N H value as determined by Beppo SAX is a factor of ten higher than expected. This is now a common result for various coronal sources observed by Beppo SAX, that still remains to be explained. The coronal metal abundance determined for II Peg by Beppo SAX is subsolar (∼ 0.3), in line with the results found for many other active stars. It is still an open question if this low metal abundance is in contradiction or not with the photospheric metallicity of II Peg.