Observational Evidence for Small‐Scale Mixture of Weak and Strong Fields in the Quiet Sun | Zendy

H. SocasNavarro | Zendy; B. W. Lites | Zendy

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Observational Evidence for Small‐Scale Mixture of Weak and Strong Fields in the Quiet Sun

Author(s) -

H. SocasNavarro,

B. W. Lites

Publication year - 2004

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/424796

Subject(s) - polarimeter , quiet , physics , astrophysics , magnetic field , resolution (logic) , angular resolution (graph drawing) , field (mathematics) , diffraction , computational physics , astronomy , optics , polarimetry , scattering , mathematics , quantum mechanics , artificial intelligence , combinatorics , pure mathematics , computer science

Three different maps of the quiet Sun, observed with the Advanced StokesPolarimeter (ASP) and the Diffraction-Limited Stokes Polarimeter (DLSP), showevidence of strong ($\simeq$1700 G) and weak ($<$500 G) fields coexistingwithin the resolution element both at network and internetwork locations. Theangular resolution of the observations is of 1\arcsec (ASP) and 0.\arcsec6(DLSP), respectively. Even at the higher DLSP resolution, a significantfraction of the network magnetic patches harbor a mixture of strong and weakfields. Internetwork elements that exhibit kG fields when analyzed with asingle-component atmosphere are also shown to harbor considerable amounts ofweak fields. Only those patches for which a single-component analysis yieldsweak fields do not show this mixture of field strengths. Finally, there is alarger fractional area of weak fields in the convective upflows than in thedownflows.Comment: ApJ, in pres

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