Документ взят из кэша поисковой машины. Адрес оригинального документа : http://star.arm.ac.uk/highlights/2012/603/bp_mag/VisualAnalysis/121107/121107_07.pdf Дата изменения: Mon Jul 23 18:39:25 2012 Дата индексирования: Mon Feb 4 02:45:13 2013 Кодировка: Поисковые слова: mars global surveyor

No. 7 Time (UT) X-ray BP behaviour 01:21 Magnetic fragment behaviour A simple polarities occurs. A presented the FOV. Note bipolar region presented. Two Start of the data set. touch each other and cancellation big cluster of negative fragment at southwest also at the edge of at the northeast, and it The emerging positive negative fragments at its continues at the previous During the cancellation at the bipolar region, although there are short-living X-ray flashing sometimes, it is hardly to see any clear bright structure. (The flash normally stays one or two frames so that is easy to be recognized as noise.)

01:56

A bipolar emerges becomes stronger. ones move toward west. Cancellation bipolar region.

03:29

The negative fragments in the previous bipolar region become less, smaller and weaker. The positive fragments begins to concentrate and move toward the emerged negative fragment at the northeast. At the east, some negative fragments move toward the positive ones. Many positive and negative fragments emerge at the west, southwest directions. A bright band becomes At southeast, cancellation occurs. The stronger. It extends at the positive and negative fragments in this area southeast direction. become closer to each other. The main event emerges. It also shows a shape of stripe. combining with the bright stripe at southeast, the bright region shows an inverted "V" shape. The main bright stripe become stronger. And another weak bright stripe emerges which also points to the southwest but more to the south. The bright stripe reaches its maximum intensity. A loop brightening becomes very strong. One of its foot-points locates at south. Another one locates at north and become brighter. A weak A few negative fragments disappeared. Cancellation occurred and continues. At southwest, the emerged polarities (05:28) moved toward each other and cancellation is observed between them.

05:28 06:37

07:13

08:23

In the region, positive fragments stop moving but negative fragments start to move toward the positive ones. A few more fragments emerge at southwest and cancellation occurs at this direction. A few fragments separate from the big cluster which existed at the beginning of the data set and move a little to the north. Many negative fragments in the region disappeared. Cancellation continues. At the southwest direction, many small bipolar regions emerged and cancellation continues.

08:40


jet like feature, which is starting from north top of the bright stripe and pointing to northwest, becomes stronger. The bright area shows a complicate shape. 09:17 The brightening structure becomes weak. Two paralleled stripes extending at the southwest direction. Many brighter cores present in the structures. The earier stripe at southwest becomes stronger. In the main bipolar region, both polarities become much weaker and cancellation continues. At southwest direction, many small bipolar emerged and cancellation occurs within themselves.

09:35

Cancellation continues in the main bipolar region. Both positive and negative fragments become much less and smaller. At southwest direction, many small bipolarities emerged and formed a bigger bipolar region and cancellation continues.

This region shows very complex magnetic behaviour. It is very difficult to find out the related magnetic fragments for X-ray structures. At the end of the data set, the stripe at southeast flares again and bright structures return inverted "V" shaped. At that time, although polarities in the main bipolar region becomes much weaker, cancellation is still observed.