An observation of solar active region expansion into the heliosphere

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

6 Dyfyniadau(SciVal)
123 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

According to current models, solar closed-field active regions are isolated from contributing directly to the solar wind except through small- or large-scale magnetic reconnection, including coronal mass ejections. Here we show the first direct evidence of active regions contributing directly to the solar wind by a steady-state, quiescent expansion. Advanced image processing of coronagraph data reveals a large system of nested closed-field magnetic structures expanding and accelerating to heights of at least 14 R⊙ within a helmet streamer above a large active region. The system persists for several days, and must therefore be an important contribution to the slow solar wind.
Iaith wreiddiolSaesneg
Tudalennau (o-i)L74-L78
Nifer y tudalennau5
CyfnodolynMonthly Notices of the Royal Astronomical Society Letters
Cyfrol433
Rhif cyhoeddi1
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 10 Meh 2013

Ôl bys

Gweld gwybodaeth am bynciau ymchwil 'An observation of solar active region expansion into the heliosphere'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.

Dyfynnu hyn