Solar prominences are formed by partially ionized plasma with inter-particle collision frequencies generally warranting magnetohydrodynamic treatment. In this...
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PublicaciónTwo-fluid simulations of Rayleigh-Taylor instability in a magnetized solar prominence thread. II. Effects of collisionality
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PublicaciónTwo-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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PublicaciónTwo-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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PublicaciónUbiquitous 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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NoticiaUn caos magnético escondido en la galaxia del Remolino
En lo más profundo de la estructura espiral de las galaxias hay una fuerza escondida: los campos magnéticos. Pese a ser invisibles a los telescopios...
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PublicaciónUnderstanding 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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PublicaciónUpper 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...
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PublicaciónUpper limits from the LIGO and TAMA detectors on the rate of gravitational-wave bursts
We report on the first joint search for gravitational waves by the TAMA and LIGO collaborations. We looked for millisecond-duration unmodeled gravitational-wave...
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PublicaciónUpper limits on gravitational wave bursts in LIGO's second science run
We perform a search for gravitational wave bursts using data from the second science run of the LIGO detectors, using a method based on a wavelet time-frequency...