tokens: The simulations have been carried out either on a work station with multicore processors or/and on the CFCA cluster (XC30) of National Astronomical Observatory of Japan. We make 2D visualization and analysis using package visit (Childs et al. 2012 ) and octave . SSK acknowledges support by STFC under the standard grant EP/N023986/1. BMV acknowledge partial support by JSPS (Japan Society for the Promotion of Science): No.2503786, 25610056, 26287056, 26800159. BMV also MEXT (Ministry of Education, Culture, Sports, Science and Technology): No.26105521 and RFBR grant 12-02-01336-a.
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