Bibcode
Del Pino Alemán, T.; Trujillo Bueno, J.
Bibliographical reference
The Astrophysical Journal Letters, Volume 808, Issue 1, article id. L13, 6 pp. (2015).
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7
2015
Citations
5
Refereed citations
4
Description
We present multilevel radiative transfer modeling of the scattering
polarization observed in the solar O i infrared triplet around 777 nm.
We demonstrate that the scattering polarization pattern observed on the
solar disk forms in the chromosphere, far above the photospheric region
where the bulk of the emergent intensity profiles originate. We
investigate the sensitivity of the polarization pattern to the thermal
structure of the solar atmosphere and to the presence of weak magnetic
fields (10‑2–100 G) through the Hanle effect,
showing that the scattering polarization signals of the oxygen infrared
triplet encode information on the magnetism of the solar chromosphere.
Related projects
Magnetism, Polarization and Radiative Transfer in Astrophysics
Magnetic fields pervade all astrophysical plasmas and govern most of the variability in the Universe at intermediate time scales. They are present in stars across the whole Hertzsprung-Russell diagram, in galaxies, and even perhaps in the intergalactic medium. Polarized light provides the most reliable source of information at our disposal for the
Tanausú del
Pino Alemán