X-ray emitting hot plasma in solar active regions observed by the SphinX spectrometer M. Miceli, F. Reale, S. Gburek, S. Terzo, M. Barbera, A. Collura, J. Sylwester, M. Kowalinski, P. Podgorski and M. Gryciuk A&A, 544 (2012) A139 Published online: 14 August 2012 DOI: 10.1051/0004-6361/201219670