It has been known since the work by Claverie et al. (1982) that integrated-sunlight velocities measured with the resonance scattering technique show variations...
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PublicaciónModeling of integrated sunlight velocity measurements: The effect of surface darkening by magnetic fields
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PublicaciónNo swan song for Sun-as-a-star helioseismology: Performances of the Solar-SONG prototype for individual mode characterisation
The GOLF instrument on board SoHO has been in operation for almost 25 years, but the ageing of the instrument has now strongly affected its performance...
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PublicaciónNumerical simulation of propagation of the MHD waves in sunspots
We present results of numerical 3D simulation of propagation of MHD waves in sunspots. We used two self consistent magnetohydrostatic background models of...
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PublicaciónObservations of solar p-modes with L of not greater than 5
Results are presented for the sun's radial velocity in integrated sunlight. A resonant scattering spectrometer has been used to determine the frequencies and...
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PublicaciónOn the acoustic cut-off frequency of the sun
Full solar disk observations of radial velocity, obtained with the IRIS network of resonant scattering spectrometers, are used to analyze the acoustic p-mode...
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PublicaciónOn the Solar Origin of the Signal at 220.7 μHz: A Possible Component of a g-Mode?
Gravity modes in the Sun have been the object of a long and difficult search in recent decades. Thanks to the data accumulated with the last generation of...
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PublicaciónOn the Spatial Dependence of Low-Degree Solar p-Mode Frequency Shifts from Full-Disk and Resolved-Sun Observations
We have analyzed low angular degree (low-l) solar p-mode frequency shifts extracted from two types of observations, both made by instruments on board the ESA...
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PublicaciónOn the Variation of the Peak Asymmetry of Low-l Solar p Modes
The resonant peaks of solar p modes show small amounts of asymmetry in frequency. Here, we use five independent sets of contemporaneous data, collected over a ~...
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Publicaciónp-mode power variation with solar atmosphere as observed in the Na D1 and K spectral lines
In this work we investigate p-mode power variation with solar atmosphere. To this aim, we use THÉMIS observations of the Na D1 (λ5896 Å) and K (λ7699 Å)...