Next: The Corotation Radius Up: ``Ecology'' of Magnetic Rotators Previous: The Stopping Radius in
|
Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://xray.sai.msu.ru/~mystery/articles/review/node20.html
Дата изменения: Tue Feb 25 19:24:12 1997 Дата индексирования: Tue Oct 2 14:40:25 2012 Кодировка: Поисковые слова: ngc 5128 |
Next: The
Corotation Radius Up: ``Ecology''
of Magnetic Rotators Previous: The
Stopping Radius in
Apparently, the magnetic field of a star becomes significant only when
the stopping radius exceeds the radius of the star, 
. We take the Alfven radius 
for 
, since it is the smallest of the two quantities
and 
. Hence, we can estimate the lowest value of magnetic field of a star which
will influence the flow of matter
The case 
, 
is considered most frequently, and for this case we get the following numerical
estimations
or, equivalently,
Most presently observed NS have magnetic fields 
G and dipole moments
G cm 
, so the magnetic field must necessarily be taken into account when considering
interaction of matter with these stars.