The magnetic and kinematic configuration of sunspot penumbrae is investigated by performing an inversion of the Stokes profiles of three infrared lines at 1565...
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PublicationTwo magnetic components in sunspot penumbrae
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PublicationTwo new young, wide, magnetic + non-magnetic double-degenerate binary systems
We report the discovery of two, new, rare, wide, double-degenerate binaries that each contain a magnetic and a non-magnetic star. The components of SDSS J092646...
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PublicationTwo-dimensional solar spectropolarimetry with the KIS/IAA Visible Imaging Polarimeter
Context. Spectropolarimetry at high spatial and spectral resolution is a basic tool to characterize the magnetic properties of the solar atmosphere. Aims: We...
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PublicationTwo-fluid simulations of Rayleigh-Taylor instability in a magnetized solar prominence thread. II. Effects of collisionality
Solar prominences are formed by partially ionized plasma with inter-particle collision frequencies generally warranting magnetohydrodynamic treatment. In this...
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PublicationTwo-fluid simulations of waves in the solar chromosphere. I. Numerical code verification
Solar chromosphere consists of a partially ionized plasma, which makes modeling the solar chromosphere a particularly challenging numerical task. Here we...
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PublicationTwo-fluid simulations of waves in the solar chromosphere. II. Propagation and damping of fast magneto-acoustic waves and shocks
Waves and shocks traveling through the solar chromospheric plasma are influenced by its partial ionization and weak collisional coupling, and may become...
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PublicationUbiquitous hundred-Gauss magnetic fields in solar spicules
Aims: We aim to study the magnetic field in solar spicules using high-resolution spectropolarimetric observations in the Ca II 8542 Å line obtained with the...
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PublicationUnderstanding internetwork magnetic fields as determined from visible and infrared spectral lines
We present numerical experiments aimed at understanding why near-infrared observations systematically deliver weak magnetic fields in the internetwork, whereas...
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PublicationUpper chromospheric magnetic field of a sunspot penumbra: observations of fine structure
Aims: The fine-structure of the magnetic field in a sunspot penumbra in the upper chromosphere is to be explored and compared to that in the photosphere...