Hinode extreme-ultraviolet imaging spectrometer observations of a limb active region B. O’Dwyer, G. Del Zanna, H. E. Mason, A. C. Sterling, D. Tripathi and P. R. Young A&A, 525 (2011) A137 Published online: 09 December 2010 DOI: 10.1051/0004-6361/200912701