CHROMOSPHERIC POLARIZATION IN THE PHOTOSPHERIC SOLAR OXYGEN INFRARED TRIPLET

Del Pino Alemán, Tanausú; Trujillo Bueno, Javier

doi:10.1088/2041-8205/808/1/L13

Title: CHROMOSPHERIC POLARIZATION IN THE PHOTOSPHERIC SOLAR OXYGEN INFRARED TRIPLET

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Abstract

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{sup −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.

Authors:

Del Pino Alemán, Tanausú; Trujillo Bueno, Javier ^[1]

Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife (Spain)

Publication Date:: Mon Jul 20 00:00:00 EDT 2015

OSTI Identifier:: 22518929

Resource Type:: Journal Article

Journal Name:: Astrophysical Journal Letters

Additional Journal Information:: Journal Volume: 808; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 2041-8205

Country of Publication:: United States

Language:: English

Subject:: 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CHROMOSPHERE; INFRARED SPECTRA; MAGNETIC FIELDS; MAGNETISM; OXYGEN; PHOTOSPHERE; POLARIZATION; RADIANT HEAT TRANSFER; SCATTERING; SENSITIVITY; SUN; TRIPLETS

Citation Formats


                    Del Pino Alemán, Tanausú, and Trujillo Bueno, Javier. CHROMOSPHERIC POLARIZATION IN THE PHOTOSPHERIC SOLAR OXYGEN INFRARED TRIPLET.  United States: N. p., 2015. 
        Web.  doi:10.1088/2041-8205/808/1/L13.

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                    Del Pino Alemán, Tanausú, & Trujillo Bueno, Javier. CHROMOSPHERIC POLARIZATION IN THE PHOTOSPHERIC SOLAR OXYGEN INFRARED TRIPLET.  United States.  https://doi.org/10.1088/2041-8205/808/1/L13

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                    Del Pino Alemán, Tanausú, and Trujillo Bueno, Javier. 2015.  
        "CHROMOSPHERIC POLARIZATION IN THE PHOTOSPHERIC SOLAR OXYGEN INFRARED TRIPLET".  United States.  https://doi.org/10.1088/2041-8205/808/1/L13.

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@article{osti_22518929,

  title        = {CHROMOSPHERIC POLARIZATION IN THE PHOTOSPHERIC SOLAR OXYGEN INFRARED TRIPLET},

  author       = {Del Pino Alemán, Tanausú and Trujillo Bueno, Javier},

  abstractNote = {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{sup −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.},

  doi          = {10.1088/2041-8205/808/1/L13},

  url          = {https://www.osti.gov/biblio/22518929},
  journal      = {Astrophysical Journal Letters},

  issn         = {2041-8205},

  number       = 1,

  volume       = 808,

  place        = {United States},

  year         = {Mon Jul 20 00:00:00 EDT 2015},

  month        = {Mon Jul 20 00:00:00 EDT 2015}

}

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