منابع مشابه
Heating the solar corona by plasma loops
We investigate the heating of the corona via plasma loops. It is shown that it may be possible to maintain the high corona temperatures using plasma loops as conduits. Under certain conditions heat can flow across magnetic fields up temperature gradients, a mechanism that has been previously applied to the heating of plasma loops. A typical conduit loop is hotter than the ambient plasma in the ...
متن کاملBulk Heating and Slender Magnetic Loops in the Solar Corona
The heating of the solar corona and the puzzle of the slender high reaching magnetic loops seen in observations from the Transition Region And Coronal Explorer(TRACE) has been investigated through 3D numerical simulations, and found to be caused by the well observed plasma flows in the photosphere displacing the footpoints of magnetic loops in a nearly potential configuration. It is found that ...
متن کاملAn Energy Release Mechanism of Current Loops in the Solar Atmosphere : Solar Flares and Corona Heating
A mechanism is proposed to account for the energy release by a bipolar current loop in the solar atmosphere. This mechanism is electromagnetic in nature and utilizes the non-zero J X B forces. No dissipation of the magnetic energy by resistivity, magnetic reconnection, or circuit interruption is required. From the observed fact that bipolar current loops do exist in quasi-equilibrium in the sol...
متن کاملThe heating of the solar corona
The heating of the solar corona has been a fundamental astrophysical issue for over sixty years. Over the last decade in particular, space-based solar observatories (Yohkoh, SOHOandTRACE) have revealed the complex and often subtlemagnetic-field and plasma interactions throughout the solar atmosphere in unprecedented detail. It is now established that any energy release mechanism is magnetic in ...
متن کاملHeating mechanisms of the solar corona
The solar corona is a tenuous outer atmosphere of the Sun. Its million-degree temperature was discovered spectroscopically in the 1940s, but its origin has been debated since then without complete convergence. Currently there are two classes of models; the wave theory and the microflare/nanoflare theory. Both models have merits and disadvantages, but the essential issues are nearly pinned down....
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2001
ISSN: 0004-637X,1538-4357
DOI: 10.1086/320956