Comparison of theoretical and observed Ca II 8542 Stokes profiles in quiet regions at the centre of the solar disc

0498325 - ASÚ 2019 RIV FR eng J - Článek v odborném periodiku
Jurčák, Jan - Štěpán, Jiří - Bueno, J.T. - Bianda, M.
Comparison of theoretical and observed Ca II 8542 Stokes profiles in quiet regions at the centre of the solar disc.
Astronomy & Astrophysics. Roč. 619, November (2018), č. článku A60. ISSN 0004-6361. E-ISSN 1432-0746
Grant CEP: GA ČR(CZ) GA16-16861S
Výzkumný záměr: CEZ:AV0Z1003909
Institucionální podpora: RVO:67985815
Klíčová slova: Sun * chromosphere * techniques
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 6.209, rok: 2018

Our aim is to present novel observations of the Ca II 8542 angstrom line profiles in a quiet region at the centre of the solar disc and to quantitatively compare them with the theoretical Stokes profiles obtained by solving the problem of the generation and transfer of polarised radiation in a 3D model atmosphere. We aim at estimating the reliability of the 3D model atmosphere, excluding its known lack of dynamics and/or insufficient density, using not only the line intensity but the full vector of Stokes parameters.
Trvalý link: http://hdl.handle.net/11104/0290727