Dynamical characterization of the last prolonged solar minima
The planetary hypothesis of the solar cycle is an old idea in which the gravitational influence of the planets has a non-negligible effect on the causes of the solar magnetic cycle The advance of this hypothesis is based on phenomenological correlations between dynamical parameters of the Sun's...
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paper:paper_02731177_v50_n10_p1434_Cionco2023-06-08T15:25:41Z Dynamical characterization of the last prolonged solar minima Compagnucci, Rosa Hilda Grand Minima events Solar activity Sun-Earth connection Sun-planets interactions Dynamical characterization Dynamical parameters Grand Minima events Internal flows Long-term variations Maunder minimum Orbital angular momentum Physical mechanism Radial component Solar activity Solar cycle Solar cycle modulation Solar magnetic cycle Solar minima Solar physics Strong correlation Sun-Earth connection Angular momentum Dynamics Planets Solar energy Sun The planetary hypothesis of the solar cycle is an old idea in which the gravitational influence of the planets has a non-negligible effect on the causes of the solar magnetic cycle The advance of this hypothesis is based on phenomenological correlations between dynamical parameters of the Sun's movement around the barycentre of the Solar System and sunspots time series; and more especially, identifying relationships linking solar barycentric dynamics with prolonged minima (especially Grand Minima events) However, at present there is no clear physical mechanism relating these phenomena The possible celestial influence on solar cycle modulation is of great importance not only in solar physics but also in Earth sciences, because prolonged solar minima have associated important climatic and telluric variations, in particular, during the Maunder and Dalton Minimum In this work we looked for a possible causal link in relation with solar barycentric dynamics and prolonged minima events We searched for particular changes in the Sun's acceleration and concentrated on long-term variations of the solar cycle We show how the orbital angular momentum of the Sun evolves and how the inclination of the solar barycentric orbit varies during the epochs of orbital retrogressions In particular, at these moments, the radial component of the Sun's acceleration (i.e.; in the barycentre-Sun direction) had an exceptional magnitude These radial impulses occurred at the very beginning of the Maunder Minimum, during the Dalton Minimum and also at the maximum of cycle 22 before the present extended minimum We also found a strong correlation between the planetary torque and the observed sunspots international number around that maximum We apply our results in a novel theory of Sun-planets interaction that it is sensitive to Sun barycentric dynamics and found a very important effect on the Sun's capability of storing hypothetical reservoirs of potential energy that could be released by internal flows and might be related to the solar cycle This process begins about 40 years before the solar angular momentum inversions, i.e.; before Maunder Minimum, Dalton Minimum, and before the present extended minimum Our conclusions suggest a dynamical characterization of peculiar prolonged solar minima We discuss the possible implications of these results for the solar cycle including the present extended minimum © 2012 COSPAR Published by Elsevier Ltd All rights reserved. Fil:Compagnucci, R.H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v50_n10_p1434_Cionco http://hdl.handle.net/20.500.12110/paper_02731177_v50_n10_p1434_Cionco |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Grand Minima events Solar activity Sun-Earth connection Sun-planets interactions Dynamical characterization Dynamical parameters Grand Minima events Internal flows Long-term variations Maunder minimum Orbital angular momentum Physical mechanism Radial component Solar activity Solar cycle Solar cycle modulation Solar magnetic cycle Solar minima Solar physics Strong correlation Sun-Earth connection Angular momentum Dynamics Planets Solar energy Sun |
| spellingShingle |
Grand Minima events Solar activity Sun-Earth connection Sun-planets interactions Dynamical characterization Dynamical parameters Grand Minima events Internal flows Long-term variations Maunder minimum Orbital angular momentum Physical mechanism Radial component Solar activity Solar cycle Solar cycle modulation Solar magnetic cycle Solar minima Solar physics Strong correlation Sun-Earth connection Angular momentum Dynamics Planets Solar energy Sun Compagnucci, Rosa Hilda Dynamical characterization of the last prolonged solar minima |
| topic_facet |
Grand Minima events Solar activity Sun-Earth connection Sun-planets interactions Dynamical characterization Dynamical parameters Grand Minima events Internal flows Long-term variations Maunder minimum Orbital angular momentum Physical mechanism Radial component Solar activity Solar cycle Solar cycle modulation Solar magnetic cycle Solar minima Solar physics Strong correlation Sun-Earth connection Angular momentum Dynamics Planets Solar energy Sun |
| description |
The planetary hypothesis of the solar cycle is an old idea in which the gravitational influence of the planets has a non-negligible effect on the causes of the solar magnetic cycle The advance of this hypothesis is based on phenomenological correlations between dynamical parameters of the Sun's movement around the barycentre of the Solar System and sunspots time series; and more especially, identifying relationships linking solar barycentric dynamics with prolonged minima (especially Grand Minima events) However, at present there is no clear physical mechanism relating these phenomena The possible celestial influence on solar cycle modulation is of great importance not only in solar physics but also in Earth sciences, because prolonged solar minima have associated important climatic and telluric variations, in particular, during the Maunder and Dalton Minimum In this work we looked for a possible causal link in relation with solar barycentric dynamics and prolonged minima events We searched for particular changes in the Sun's acceleration and concentrated on long-term variations of the solar cycle We show how the orbital angular momentum of the Sun evolves and how the inclination of the solar barycentric orbit varies during the epochs of orbital retrogressions In particular, at these moments, the radial component of the Sun's acceleration (i.e.; in the barycentre-Sun direction) had an exceptional magnitude These radial impulses occurred at the very beginning of the Maunder Minimum, during the Dalton Minimum and also at the maximum of cycle 22 before the present extended minimum We also found a strong correlation between the planetary torque and the observed sunspots international number around that maximum We apply our results in a novel theory of Sun-planets interaction that it is sensitive to Sun barycentric dynamics and found a very important effect on the Sun's capability of storing hypothetical reservoirs of potential energy that could be released by internal flows and might be related to the solar cycle This process begins about 40 years before the solar angular momentum inversions, i.e.; before Maunder Minimum, Dalton Minimum, and before the present extended minimum Our conclusions suggest a dynamical characterization of peculiar prolonged solar minima We discuss the possible implications of these results for the solar cycle including the present extended minimum © 2012 COSPAR Published by Elsevier Ltd All rights reserved. |
| author |
Compagnucci, Rosa Hilda |
| author_facet |
Compagnucci, Rosa Hilda |
| author_sort |
Compagnucci, Rosa Hilda |
| title |
Dynamical characterization of the last prolonged solar minima |
| title_short |
Dynamical characterization of the last prolonged solar minima |
| title_full |
Dynamical characterization of the last prolonged solar minima |
| title_fullStr |
Dynamical characterization of the last prolonged solar minima |
| title_full_unstemmed |
Dynamical characterization of the last prolonged solar minima |
| title_sort |
dynamical characterization of the last prolonged solar minima |
| publishDate |
2012 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v50_n10_p1434_Cionco http://hdl.handle.net/20.500.12110/paper_02731177_v50_n10_p1434_Cionco |
| work_keys_str_mv |
AT compagnuccirosahilda dynamicalcharacterizationofthelastprolongedsolarminima |
| _version_ |
1768545092079976448 |