The long-term spatial and temporal variation of aurora borealis events from 1600 to the present were studied using catalogues and other records of these...
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PublicationLong-Term Trends and Gleissberg Cycles in Aurora Borealis Records (1600 - 2015)
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PublicationLow-Degree Low-Order Solar p Modes As Seen By GOLF On board SOHO
Data recovered from the GOLF experiment on board the ESA/NASA SOHO spacecraft have been used to analyze the low-order low-degree solar velocity acoustic-mode...
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PublicationMAG Waves in Sunspots Umbrae: Slow Waves Leaking to the Corona
The linear oscillations of a stratified atmosphere embedded in a uniform vertical magnetic field are studied here. We use a simple theoretical model, formed by...
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PublicationMaking sense of sunspot decay - II. Deviations from the Mean Law and Plage Effects
In a statistical analysis of Debrecen Photoheliographic Results sunspot area data we find that the logarithmic deviation (logD)' of the area decay rate D from...
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PublicationMaking Sense of Sunspot Decay. I. Parabolic Decay Law and Gnevyshev-Waldmeier Relation
In a statistical study of the decay of individual sunspots based on DPR data we find that the mean instantaneous area decay rate is related to the spot radius r...
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PublicationMANCHA3D Code: Multipurpose Advanced Nonideal MHD Code for High-Resolution Simulations in Astrophysics
The MANCHA3D code is a versatile tool for numerical simulations of magnetohydrodynamic (MHD) processes in solar/stellar atmospheres. The code includes nonideal...
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PublicationMercury Transit for Stray Light Evaluation: IPM-THEMIS Case
Mercury's transit on the solar disk offers ideal conditions to determine the stray light level of instruments. We present here the results on the stray light...
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PublicationMethodology for Predicting the Probability Distribution of the Amplitude of Solar Cycle 25
A number of precursor-type methods for solar-cycle prediction are based on the use of regression models and confidence-level estimates. A drawback of these...
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PublicationMicro-structured magnetic atmospheres
Asymmetrical Stokes profiles are produced if the photospheric magnetic and velocity fields are structured on scales smaller than the mean-free-path of the...