Magnetic Field Vector Measurements with THEMIS

V. Bommier (1) , M. J. M. González , B. Schmieder (2) , E. Landi Degl'Innocenti

1 LESIA (UMR_8109) - Laboratoire d'études spatiales et d'instrumentation en astrophysique
2 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique

The aim of the present work is twofold: a) to validate the Milne-Eddington UNNOFIT inversion by comparing its results with those of the SIR inversion, which is in LTE but does not assumes the Milne-Eddington atmosphere; b) to present a decrease of the network local average magnetic field strength in the vicinity of a filament/prominence, observed before its disppearance, suggesting that the disappearance results from a weakening of the magnetic support.

Domaines: Physique [physics]; Astrophysique [astro-ph]; Astrophysique stellaire et solaire [astro-ph.SR]

V. Bommier, M. J. M. González, B. Schmieder, E. Landi Degl'Innocenti. Magnetic Field Vector Measurements with THEMIS. Subsurface and Atmospheric Influences on Solar Activity, Apr 2007, Sacramento Peak, Sunspot (New Mexico), United States. pp.123-129. ⟨hal-02383352⟩