Number of the records: 1
On the sensitivity of the Halpha scattering polarization to chromospheric magnetism
- 1.
SYSNO ASEP 0355116 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title On the sensitivity of the Halpha scattering polarization to chromospheric magnetism Author(s) Štěpán, Jiří (ASU-R) RID, ORCID
Trujillo Bueno, J. (ES)Source Title Memorie della Societa Astronomica Italiana - ISSN 0037-8720
Roč. 81, č. 2 (2010), s. 810-813Number of pages 4 s. Action Chromospheric structure and dynamics: From old wisdom to new insights Event date 31.08.2009-4.09.2009 VEvent location Sunspot, Country US - United States Event type WRD Language eng - English Country IT - Italy Keywords polarization ; radiative transfer ; scattering Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics CEZ AV0Z10030501 - ASU-R (2005-2011) Annotation A 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. Workplace Astronomical Institute Contact Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2011
Number of the records: 1