Role and Contribution of the Open Field Line Region in the Large Helical Device

2007 ◽  
Vol 51 (2T) ◽  
pp. 147-149
Author(s):  
T. Watanabe ◽  
S. Masuzaki ◽  
Y. Nakamura ◽  
H. Hojo ◽  
Keyword(s):  
Field Line ◽  
Open Field ◽  
Line Region ◽  
Open Field Line

Large-scale auroral distribution and the open field line region

1984 ◽  
Vol 32 (1) ◽  
pp. 105-109 ◽  
Author(s):  
J.S. Murphree ◽  
C.D. Anger ◽  
C.-I. Meng ◽  
S.-I. Akasofu
Keyword(s):  
Field Line ◽  
Open Field ◽  
Large Scale ◽  
Line Region ◽  
Open Field Line

Changes of the size of the open field line region during substo rms

1992 ◽  
Vol 40 (11) ◽  
pp. 1513-1524 ◽  
Author(s):  
S.-I. Akasofu ◽  
C.-I. Meng ◽  
K. Makita
Keyword(s):  
Field Line ◽  
Open Field ◽  
Line Region ◽  
Open Field Line

Tail lobe and open field line region entries at mid to high latitudes

1997 ◽  
Vol 20 (3) ◽  
pp. 431-435 ◽  
Author(s):  
J.F Fennell ◽  
J.B Blake ◽  
J.L Roeder ◽  
R Sheldon ◽  
H.E Spence
Keyword(s):  
Field Line ◽  
Open Field ◽  
High Latitudes ◽  
Line Region ◽  
Open Field Line

Dayside open field line region boundary at high altitudes

1999 ◽  
Vol 24 (1-3) ◽  
pp. 129-133
Author(s):  
J.F. Fennell ◽  
J.L. Roeder ◽  
R. Friedel ◽  
M. Grande ◽  
H.E. Spence
Keyword(s):  
Field Line ◽  
Open Field ◽  
High Altitudes ◽  
Line Region ◽  
Open Field Line

scholarly journals Large polar caps for twisted magnetosphere of magnetars

2019 ◽  
Author(s):  
H Tong
Keyword(s):  
Magnetic Field ◽  
Field Line ◽  
Energy Release ◽  
Open Field ◽  
Magnetic Energy ◽  
Hot Spot ◽  
Open Field Line ◽  
Field Lines ◽  
The Magnetic Field ◽  
Magnetic Energy Release

Abstract The magnetic field of magnetars may be twisted compared with that of normal pulsars. Previous works mainly discussed magnetic energy release in the closed field line regions of magnetars. For a twisted magnetic field, the field lines will inflate in the radial direction. Similar to normal pulsars, the idea of light cylinder radius is introduced. More field lines will cross the light cylinder and become open for a twisted magnetic field. Therefore, magnetars may have a large polar cap, which may correspond to the hot spot during outburst. Particle flow in the open field line regions will result in the untwisting of the magnetic field. Magnetic energy release in the open field line regions can be calculated. The model calculations can catch the general trend of magnetar outburst: decreasing X-ray luminosity, shrinking hot spot etc. For magnetic energy release in the open field line regions, the geometry will be the same for different outburst in one magnetar.

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