SH21A-2370
Solar Minima Comparative Analysis Using EUV Tomography
Tuesday, 15 December 2015
Poster Hall (Moscone South)
Diego Gustavo Lloveras1, Bart van der Holst2, Alberto M Vásquez3, Federico Nuevo3 and Richard A Frazin2, (1)University of Buenos Aires, Physics, Buenos Aires, Argentina, (2)University of Michigan Ann Arbor, Departament of Climate and Space Sciences and Engineering, Ann Arbor, MI, United States, (3)Instituto de Astronomía y Física del Espacio, Buenos Aires, Argentina
Abstract:
The last three solar cycles have shown a systematic decrease of activity, with the last minimum (2008) being considerably more quiet than the previous one (1996), as well as magnetically weaker. We present a comparative analysis of the solar corona for last two minimima, based on differential emission measure tomography (DEMT) of time series of images taken by EIT/SOHO and EUVI/STEREO. The aim of the work is to establish if there were systematic thermodynamical differences between the two periods in the lower corona. We discuss our results in the context of other works.
