Quiet Sun internetwork magnetic fields from the inversion of Hinode measurements

Details Quiet Sun internetwork magnetic fields from the inversion of Hinode measurements Quiet Sun internetwork magnetic fields from the inversion of Hinode measurements

2007-10-07

arxiv.org/abs/0710.1405v1

Astronomy and Astrophysics

Astrophysics

To appear in ApJ letters

Scientific paper

10.1086/524139

We analyze Fe I 630 nm observations of the quiet Sun at disk center taken with the spectropolarimeter of the Solar Optical Telescope aboard the Hinode satellite. A significant fraction of the scanned area, including granules, turns out to be covered by magnetic fields. We derive field strength and inclination probability density functions from a Milne-Eddington inversion of the observed Stokes profiles. They show that the internetwork consists of very inclined, hG fields. As expected, network areas exhibit a predominance of kG field concentrations. The high spatial resolution of Hinode's spectropolarimetric measurements brings to an agreement the results obtained from the analysis of visible and near-infrared lines.

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