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On the sensitivity of the Halpha scattering polarization to chromospheric magnetism

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    SYSNO ASEP0355116
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JOstatní články
    TitleOn the sensitivity of the Halpha scattering polarization to chromospheric magnetism
    Author(s) Štěpán, Jiří (ASU-R) RID, ORCID
    Trujillo Bueno, J. (ES)
    Source TitleMemorie della Societa Astronomica Italiana - ISSN 0037-8720
    Roč. 81, č. 2 (2010), s. 810-813
    Number of pages4 s.
    ActionChromospheric structure and dynamics: From old wisdom to new insights
    Event date31.08.2009-4.09.2009
    VEvent locationSunspot,
    CountryUS - United States
    Event typeWRD
    Languageeng - English
    CountryIT - Italy
    Keywordspolarization ; radiative transfer ; scattering
    Subject RIVBN - Astronomy, Celestial Mechanics, Astrophysics
    CEZAV0Z10030501 - ASU-R (2005-2011)
    AnnotationA particularly interesting line for exploring the physical conditions of the quiet solar chromosphere is Halpha , but its intensity profile is magnetically insensitive and the small circular polarization signatures produced by the longitudinal Zeeman effect come mainly from the underlying photosphere. Here we show that the Hanle effect in Halpha provides quantitative information on the magnetism of the quiet chromosphere. To this end, we calculate the response function of the emergent scattering polarization to perturbations in the magnetic field.
    WorkplaceAstronomical Institute
    ContactRadka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326
    Year of Publishing2011