Line Asymmetries and the Microstructure of Photospheric Magnetic Fields

• DOI: 10.1086/177530
• Publication Date: 2002-07-26T18:41:43Z
• Authors: J. Sanchez Almeida; E. Landi degl'Inn...; V. Martinez Pillet; B. W. Lites
• Keywords: Photosphere; Sunspot

view Abstract Citations (128) References (55) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Line Asymmetries and the Microstructure of Photospheric Magnetic Fields Sanchez Almeida, J. ; Landi Degl'Innocenti, E. Martinez Pillet, V. Lites, B. W. A systematic structuring magnetic fields over scales much smaller than mean free path photospheric photons may be responsible for observed asymmetrical Stokes profiles. We explore this possibility by deriving radiative transfer equation microstructured atmospheres (the MISMA approximation). This is subsequently employed to show that very schematic scenarios penumbrae sunspots, plage network regions, internetwork regions produce profiles have asymmetries. The details these model are secondary importance, but ease generating type asymmetries with MISMAs significant, so existence deserves serious consideration. Should such microstructures exist, techniques currently infer properties solar photosphere need revised. also concern physics itself. These two topics briefly discussed. Publication: Astrophysical Journal Pub Date: July 1996 DOI: 10.1086/177530 Bibcode: 1996ApJ...466..537S Keywords: LINE: FORMATION; POLARIZATION; RADIATIVE TRANSFER; SUN: MAGNETIC FIELDS; PHOTOSPHERE; SUNSPOTS full text sources ADS |