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		| Paper: | 
		XRT Detection of Hot Plasma in Active Regions and Nanoflare Heating | 
	 
	
		| Volume: | 
		415, The Second Hinode Science Meeting: Beyond Discovery-Toward Understanding | 
	 
	
		| Page: | 
		256 | 
	 
	
		| Authors: | 
		Reale, F.; Klimchuk, J. A.; Parenti, S.; Testa, P. | 
	 
	
	
		| Abstract: | 
		Nanoflares occurring in sub-resolution strands have been long invoked as strong candidates for the heating of active region (AR) coronal loops. However, the frequent occurrence of nanoflares requires the steady presence of flare-hot plasma in the active region, which has been difficult to detect so far. We report on the analysis of multi-filter Hinode/XRT observations of an active region, which may show the widespread presence of 10 MK plasma. | 
	 
	
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