Počet záznamů: 1
Three-Dimensional View of Transient Horizontal Magnetic Fields in the Photosphere
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SYSNO ASEP 0350104 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Three-Dimensional View of Transient Horizontal Magnetic Fields in the Photosphere Tvůrce(i) Ishikawa, R. (JP)
Tsuneta, S. (JP)
Jurčák, Jan (ASU-R) RID, ORCIDCelkový počet autorů 3 Zdroj.dok. Astrophysical Journal - ISSN 0004-637X
Roč. 713, č. 2 (2010), s. 1310-1321Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova magnetic fields ; Sun ; photosphere ; granulation ; surface magnetism Vědní obor RIV BN - Astronomie a nebeská mechanika, astrofyzika CEP IAA300030808 GA AV ČR - Akademie věd CEZ AV0Z10030501 - ASU-R (2005-2011) UT WOS 000276329400051 DOI 10.1088/0004-637X/713/2/1310 Anotace We infer the three-dimensional magnetic structure of a transient horizontal magnetic field (THMF) during its evolution through the photosphere using SIRGAUS inversion code. The SIRGAUS code allows for retrieval of information on the magnetic and thermodynamic parameters of the flux tube embedded in the atmosphere from the observed Stokes profiles. Spectropolarimetric observations of the quiet Sun at the disk center were performed with the Solar Optical Telescope on board Hinode with Fe i 630.2 nm lines. In three consecutive scans we observe an appearance and disappearance of a THMF. The results from the inversion of the Stokes spectra clearly point to the existence of a flux tube with magnetic field strength of ~400 G rising through the line-forming layer of the Fe i 630.2 nm lines. The vertical size of the tube is smaller than the thickness of the line-forming layer. The THMF has a clear Ω-shaped loop structure with the apex located near the edge of a granular cell. Pracoviště Astronomický ústav Kontakt Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Rok sběru 2011
Počet záznamů: 1