A new imminent grand minimum?

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The planetary hypothesis of solar cycle is an old idea by which the planetary gravity acting on the Sun might have a non-negligible effect on the solar magnetic cycle. The advance of this hypothesis is based on phenomenological correlations between dynamical parameters of the Sun's movement aro...

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Autores principales:	Cionco, R.G., Compagnucci, R.H.
Formato:	Artículo publishedVersion
Publicado:	2011
Materias:	Sun: activity - Sun: interior sunspots
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_17439213_v7_nS286_p414_Cionco https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_17439213_v7_nS286_p414_Cionco_oai
Aporte de:	Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires

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spelling	I28-R145-paper_17439213_v7_nS286_p414_Cionco_oai2024-08-16 Cionco, R.G. Compagnucci, R.H. 2011 The planetary hypothesis of solar cycle is an old idea by which the planetary gravity acting on the Sun might have a non-negligible effect on the solar magnetic cycle. The advance of this hypothesis is based on phenomenological correlations between dynamical parameters of the Sun's movement around the barycenter of the Solar System and sunspots time series. In addition, several authors have proposed, using different methodologies that the first Grand Minima (GM) event of the new millennium is coming or has already begun. We present new fully three dimensional N-body simulations of the solar inertial motion (SIM) around the barycentre of the solar system in order to perform a phenomenological comparison between relevant SIM dynamical parameters and the occurrences of the last GM events (i.e., Maunder and Dalton). Our fundamental result is that the Sun acceleration decomposed in a co-orbital reference system shows a very particular behaviour that is common to Maunder minimum, Dalton minimum and the maximum of cycle 22 (around 1990), before the present prolonged minimum. We discuss our results in terms of a dynamical characterization of GM with relation to Sun dynamics and possible implications for a new GM event. © 2012 International Astronomical Union. Fil:Compagnucci, R.H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_17439213_v7_nS286_p414_Cionco info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Proc. Int. Astron. Union 2011;7(S286):414-417 Sun: activity - Sun: interior sunspots A new imminent grand minimum? info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_17439213_v7_nS286_p414_Cionco_oai
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-145
collection	Repositorio Digital de la Universidad de Buenos Aires (UBA)
topic	Sun: activity - Sun: interior sunspots
spellingShingle	Sun: activity - Sun: interior sunspots Cionco, R.G. Compagnucci, R.H. A new imminent grand minimum?
topic_facet	Sun: activity - Sun: interior sunspots
description	The planetary hypothesis of solar cycle is an old idea by which the planetary gravity acting on the Sun might have a non-negligible effect on the solar magnetic cycle. The advance of this hypothesis is based on phenomenological correlations between dynamical parameters of the Sun's movement around the barycenter of the Solar System and sunspots time series. In addition, several authors have proposed, using different methodologies that the first Grand Minima (GM) event of the new millennium is coming or has already begun. We present new fully three dimensional N-body simulations of the solar inertial motion (SIM) around the barycentre of the solar system in order to perform a phenomenological comparison between relevant SIM dynamical parameters and the occurrences of the last GM events (i.e., Maunder and Dalton). Our fundamental result is that the Sun acceleration decomposed in a co-orbital reference system shows a very particular behaviour that is common to Maunder minimum, Dalton minimum and the maximum of cycle 22 (around 1990), before the present prolonged minimum. We discuss our results in terms of a dynamical characterization of GM with relation to Sun dynamics and possible implications for a new GM event. © 2012 International Astronomical Union.
format	Artículo Artículo publishedVersion
author	Cionco, R.G. Compagnucci, R.H.
author_facet	Cionco, R.G. Compagnucci, R.H.
author_sort	Cionco, R.G.
title	A new imminent grand minimum?
title_short	A new imminent grand minimum?
title_full	A new imminent grand minimum?
title_fullStr	A new imminent grand minimum?
title_full_unstemmed	A new imminent grand minimum?
title_sort	new imminent grand minimum?
publishDate	2011
url	http://hdl.handle.net/20.500.12110/paper_17439213_v7_nS286_p414_Cionco https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_17439213_v7_nS286_p414_Cionco_oai
work_keys_str_mv	AT cioncorg anewimminentgrandminimum AT compagnuccirh anewimminentgrandminimum AT cioncorg newimminentgrandminimum AT compagnuccirh newimminentgrandminimum
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A new imminent grand minimum?

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