Planetary Magnetopause and Heliopause Current Sheets

Belenkaya, E. S.

doi:10.1002/9781119324522.ch13

Cited by 5 publications

(11 citation statements)

References 57 publications

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“…It was shown by Belenkaya [9,10] that dynamo can work at the heliopause, amplifying magnetic field value just out of it. This suggestion was supported by observations of heliopause intersection by the Voyager 1 spacecraft and later by Voyager 2.…”

Section: Discussionmentioning

confidence: 99%

“…The magnetic field of the solar wind is associated with the heliospheric plasma, and the field of the interstellar medium is associated with its plasma. The performed estimates showed that the enhancement of the magnetic field behind the heliopause by the dynamo mechanism is possible in the region containing the point of intersection of the Voyager 1 spacecraft with the heliosphere boundary [9,10].…”

Section: Dynamo Behind the Astrosphere Of A Rapidly Rotating Magneticmentioning

confidence: 99%

“…The dynamo mechanism proposed for the magnetopause of a rapidly rotating magnetic planet was applied to the heliopause [9,10]. The Voyager 1 spacecraft crossed the heliopause on 25August 2012 at a distance of 121.7 AU.…”

Section: Dynamo Behind the Astrosphere Of A Rapidly Rotating Magneticmentioning

confidence: 99%

“…In addition, the plasma density increased by an order of magnitude, while the temperature decreased. In the works of Belenkaya [9,10], it was shown that all the necessary conditions for the operation of the dynamo were met behind the heliopause. Therefore, this mechanism can explain the observed two fold enhancement of the magnetic field without changing its direction when Voyager 1 entered the interstellar medium.…”

Section: Dynamo Behind the Astrosphere Of A Rapidly Rotating Magneticmentioning

confidence: 99%

“…In the interaction of a star-exoplanet, the role of magnetic fields is crucial. In this study we will focus on special locations that are significant in the creation of strong field-aligned currents participating in the generation of auroras [4][5][6] and in reconnection and dynamo processes [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Sliding Contacts in Planetary Magnetospheres

Alexeev

2021

Symmetry

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In the planetary magnetospheres there are specific places connected with velocity breakdown, reconnection, and dynamo processes. Here we pay attention to sliding layers. Sliding layers are formed in the ionosphere, on separatrix surfaces, at the magnetopauses and boundaries of stellar astrospheres, and at the Alfvén radius in the equatorial magnetosphere of rapidly rotating strongly magnetized giant planets. Although sliding contacts usually occur in thin local layers, their influence on the global structure of the surrounding space is very great. Therefore, they are associated with non-local processes that play a key role on a large scale. There can be an exchange between different forms of energy, a generation of strong field-aligned currents and emissions, and an amplification of magnetic fields. Depending on the conditions in the magnetosphere of the planet/exoplanet and in the flow of magnetized plasma passing it, different numbers of sliding layers with different configurations appear. Some are associated with regions of auroras and possible radio emissions. The search for planetary radio emissions is a current task in the detection of exoplanets.

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Section: Discussionmentioning

confidence: 99%

Section: Dynamo Behind the Astrosphere Of A Rapidly Rotating Magneticmentioning

confidence: 99%

Section: Dynamo Behind the Astrosphere Of A Rapidly Rotating Magneticmentioning

confidence: 99%

Section: Dynamo Behind the Astrosphere Of A Rapidly Rotating Magneticmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sliding Contacts in Planetary Magnetospheres

Alexeev

2021

Symmetry

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Dynamo beyond the Heliopause: Verification from the Available Data of Voyager 2

Belenkaya

2021

Astron. Rep.

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Can a Dynamo Mechanism Act at the Magnetopauses of Magnetic Rapidly Rotating Exoplanets?

Belenkaya

2022

Fluids

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An astrophysical dynamo converts the kinetic energy of fluids into magnetic energy. Dynamo is a non-local process. Here, we consider whether a dynamo can operate at the magnetopauses of magnetic rapidly rotating planets. We analyze the main necessary condition for the work of this type of dynamo—the rotation transfer from the planet to the magnetopause. We show the role of the current disc around a rapidly rotating magnetic planet in the redistribution of angular momentum depending on the direction of the external magnetic field, using the example of the Jupiter’s magnetodisc.

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Planetary Magnetopause and Heliopause Current Sheets

Cited by 5 publications

References 57 publications

Sliding Contacts in Planetary Magnetospheres

Sliding Contacts in Planetary Magnetospheres

Dynamo beyond the Heliopause: Verification from the Available Data of Voyager 2

Can a Dynamo Mechanism Act at the Magnetopauses of Magnetic Rapidly Rotating Exoplanets?

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