Symmetries of Magnetic Fields Driven by Spherical Dynamos of Exoplanets and Their Host Stars

Observations of exoplanets open a new area of scientific activity and the structure of exoplanet magnetospheres is an important part of this area. Here we use symmetry arguments and experiences in spherical dynamo modeling to obtain the set of possible magnetic configurations for exoplanets and thei...

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Main Authors:	Dmitry Sokoloff, Helmi Malova, Egor Yushkov
Format:	Article
Language:	English
Published:	MDPI AG 2020-12-01
Series:	Symmetry
Subjects:	exoplanets and host stars spherical magnetic dynamo magnetic field configurations dipole and quadrupole symmetries current sheets
Online Access:	https://www.mdpi.com/2073-8994/12/12/2085

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spelling	doaj-831ba0d1cf5c4751ab0cbf0bce2d02512020-12-16T00:04:23ZengMDPI AGSymmetry2073-89942020-12-01122085208510.3390/sym12122085Symmetries of Magnetic Fields Driven by Spherical Dynamos of Exoplanets and Their Host StarsDmitry Sokoloff0Helmi Malova1Egor Yushkov2Department of Physics, Lomonosov Moscow State University, 119991 Moscow, RussiaSkobeltsyn Institute of Nuclear Physics of MSU, 119991 Moscow, RussiaDepartment of Physics, Lomonosov Moscow State University, 119991 Moscow, RussiaObservations of exoplanets open a new area of scientific activity and the structure of exoplanet magnetospheres is an important part of this area. Here we use symmetry arguments and experiences in spherical dynamo modeling to obtain the set of possible magnetic configurations for exoplanets and their corresponding host stars. The main part of our results is that the possible choice is much richer than the basic dipole magnetic field of both exoplanets and stars. Other options, for example, are quadrupole configurations or mixed parity solutions. Expected configurations of current sheets for the above mentioned exoplanet host star systems are presented as well.https://www.mdpi.com/2073-8994/12/12/2085exoplanets and host starsspherical magnetic dynamomagnetic field configurationsdipole and quadrupole symmetriescurrent sheets
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Dmitry Sokoloff Helmi Malova Egor Yushkov
spellingShingle	Dmitry Sokoloff Helmi Malova Egor Yushkov Symmetries of Magnetic Fields Driven by Spherical Dynamos of Exoplanets and Their Host Stars Symmetry exoplanets and host stars spherical magnetic dynamo magnetic field configurations dipole and quadrupole symmetries current sheets
author_facet	Dmitry Sokoloff Helmi Malova Egor Yushkov
author_sort	Dmitry Sokoloff
title	Symmetries of Magnetic Fields Driven by Spherical Dynamos of Exoplanets and Their Host Stars
title_short	Symmetries of Magnetic Fields Driven by Spherical Dynamos of Exoplanets and Their Host Stars
title_full	Symmetries of Magnetic Fields Driven by Spherical Dynamos of Exoplanets and Their Host Stars
title_fullStr	Symmetries of Magnetic Fields Driven by Spherical Dynamos of Exoplanets and Their Host Stars
title_full_unstemmed	Symmetries of Magnetic Fields Driven by Spherical Dynamos of Exoplanets and Their Host Stars
title_sort	symmetries of magnetic fields driven by spherical dynamos of exoplanets and their host stars
publisher	MDPI AG
series	Symmetry
issn	2073-8994
publishDate	2020-12-01
description	Observations of exoplanets open a new area of scientific activity and the structure of exoplanet magnetospheres is an important part of this area. Here we use symmetry arguments and experiences in spherical dynamo modeling to obtain the set of possible magnetic configurations for exoplanets and their corresponding host stars. The main part of our results is that the possible choice is much richer than the basic dipole magnetic field of both exoplanets and stars. Other options, for example, are quadrupole configurations or mixed parity solutions. Expected configurations of current sheets for the above mentioned exoplanet host star systems are presented as well.
topic	exoplanets and host stars spherical magnetic dynamo magnetic field configurations dipole and quadrupole symmetries current sheets
url	https://www.mdpi.com/2073-8994/12/12/2085
work_keys_str_mv	AT dmitrysokoloff symmetriesofmagneticfieldsdrivenbysphericaldynamosofexoplanetsandtheirhoststars AT helmimalova symmetriesofmagneticfieldsdrivenbysphericaldynamosofexoplanetsandtheirhoststars AT egoryushkov symmetriesofmagneticfieldsdrivenbysphericaldynamosofexoplanetsandtheirhoststars
_version_	1724381876613808128

Symmetries of Magnetic Fields Driven by Spherical Dynamos of Exoplanets and Their Host Stars

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