COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II
|
1995年
/
320卷
/
07期
关键词:
D O I:
暂无
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
The comparison of solar photosphere velocity-fields with the day-by-day evolutions of sun spots reveals following phenomenn: the active centers (sun-spots and facular regions) are generally associated with up-draft areas, but sun-spot evolution (change of shape, scission and bursting into several spots) corresponds to areas of downward flow or at the boundary of upflow and downflow. A study for twelve cases suggests a systematic effect.