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Magnetic Field Stratification in Active-region Plage from Ca II K and Ca II 8542 Å Spectropolarimetry

  • Authors: Iñigo Juanikorena Berasategi, Ernest Alsina Ballester, Javier Trujillo Bueno, Francisco A. Iglesias, Yusuke Kawabata, Juan Sebastián Castellanos Durán, Masahito Kubo, Alex Feller, Yukio Katsukawa, Sami K. Solanki, Jose Carlos del Toro Iniesta, Andreas Lagg, Achim Gandorfer, Pietro Bernasconi, Thomas Berkefeld, Tino L. Riethmüller, Yoshihiro Naito, Alberto Álvarez-Herrero, H. N. Smitha, David Orozco Suárez, Bianca Grauf, Michael Carpenter, Alexander Bell, Valentín Martínez Pillet, Francisco Javier Bailén, Julian Blanco Rodríguez, Edvarda Harnes, Johannes Hölken, Ryohtaroh T. Ishikawa, Takuma Matsumoto, Takayoshi Oba, Azaymi L. Siu-Tapia, Hanna Strecker, Dušan Vukadinovic

Iñigo Juanikorena Berasategi et al 2026 The Astrophysical Journal Letters 1007 .

  • Provider: AAS Journals

Caption: Figure 1.

Images of the intensity and circular polarization at selected wavelengths of the analyzed datasets. Upper panels correspond to the SCIP observation, and lower ones to SUSI’s. Left panels display intensity maps close to the continuum (around 3946 Å in SUSI and 8505 Å in SCIP), with the intensity given in SI units. Central panels show the core of the Ca II lines of interest (K in SUSI and 8542 Å in SCIP), normalized by the local continuum. The right panels display the circular polarization in the blue wing. The wavelength considered in each panel is indicated above it, with Δλ being the separation from the line core. The red rectangle indicates the position of the SUSI observation within the FOV of SCIP.

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