More than about 20 central stars of planetary nebulae (CSPNs) have been observed spectropolarimetrically, yet no clear, unambiguous signal of the presence of a...
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PublicaciónUpper Limits to the Magnetic Field in Central Stars of Planetary Nebulae
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PublicaciónVariation in sunspot properties between 1999 and 2014
Aims: We study the variation in the magnetic field strength, area, and continuum intensity of umbrae in solar cycles 23 and 24. Methods: We analyzed a sample of...
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PublicaciónVector magnetic field map at the photospheric level below and around a solar filament (neutral line)
We present a vector magnetic field map obtained on 7 December 2003, below and around a filament located not so far from the active region NOAA 517, whose one...
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PublicaciónVector magnetic fields of emerging solar flux. I. Properties at the site of emergence
Several small emerging bipolar regions have been observed with the Advanced Stokes Polarimeter (ASP), including extensive time series measurements of one small...
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PublicaciónVelocity fields below the magnetic canopy of solar flux tubes: evidence for high-speed downflows?
It is well-established that velocities in the immediate surroundings of solar magnetic elements produce an asymmetry in the Stokes V profiles emerging from the...
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PublicaciónVFISV: Very Fast Inversion of the Stokes Vector for the Helioseismic and Magnetic Imager
In this paper we describe in detail the implementation and main properties of a new inversion code for the polarized radiative transfer equation (VFISV: Very...
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PublicaciónWave heating of the solar atmosphere
Magnetic waves are a relevant component in the dynamics of the solar atmosphere. Their significance has increased because of their potential as a remote...
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PublicaciónWave Propagation and Shock Formation in Different Magnetic Structures
Velocity oscillations "measured" simultaneously at the photosphere and the chromosphere—from time series of spectropolarimetric data in the 10830 Å region—of...
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PublicaciónWhy we need to measure turbulent magnetic fields in HII regions
We have measured the emission line profiles in Hα from populations of HII regions in nearby spiral galaxies, and extracted their non-thermal line widths. These...