A detailed NLTE investigation of Fe I lines is carried out within the framework of the MACKKL model of the quiet solar atmosphere. The authors used a realistic...
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PublicationFe I lines in the spectra of cool stars: NLTE effects in solar-like atmospheres.
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TalkFlares: highly energetic explosions on the Sun
Flares are among the most energetic magnetic solar phenomena. They are often accompanied by ejections of charged particles, which have a direct influence on the...
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PublicationForces on magnetic flux tubes moving in inhomogeneous flows
The back-reaction of an incompressible two-dimensional flow of constant strain to the accelerated motion of a straight cylinder is calculated in the general...
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PublicationFurther implications of solar p-modes as measured in NA and K resonance lines
The ratios between the amplitudes of p-modes measured simultaneously in the Na and K resonance lines are compared with the expected ratios for adiabatic waves...
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PublicationInversion of Stokes profiles
An inversion code of Stokes line profiles is presented. It allows the recovery of the stratification of the temperature, the magnetic field vector, and the line...
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PublicationLimitations of the Ca II 8542 Å Line for the Determination of Magnetic Field Oscillations
Chromospheric umbral oscillations produce periodic brightenings in the core of some spectral lines, known as umbral flashes. They are also accompanied by...
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PublicationLinewidths of low-degree acoustic modes of the sun
Estimates of the spectral linewidths of low degree (l = 0 and l = 1), 5-min p-modes obtained from Doppler shift observations in 1984 (63 d) and 1986 (63 d) are...
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PublicationLong Characteristics versus Short Characteristics in 3D Radiative Transfer Simulations of Polarized Radiation
We compare maps of scattering polarization signals obtained from three-dimensional (3D) radiation transfer calculations in a magnetoconvection model of the...
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PublicationLTE polarized radiative transfer through interlaced atmospheres
We show that the solution of the radiative transfer equation (RTE) through a line of sight that pierces several times two alternate atmospheres can be obtained...