Dust dynamic pressure and magnetopause displacement: reasons for non-detection

Mann, Ingrid; Hamrin, Maria

doi:10.5194/angeo-31-39-2013

Cited by 2 publications

(2 citation statements)

References 25 publications

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“…The acceleration bears some simillarities to the ion pick-up process and a basic understanding of the nanodust dynamics in the solar wind and at the edge of the heliosphere can be obtained from applying the guiding center approximation (Mann et al (2014)), while more detailed studies are in progress. In spite of the large velocity the nanodust momentum flux in the solar wind is small and for instance it does not influence the magnetosphere of the Earth (Mann & Hamrin(2013)). The interstellar dust measurements with the Ulysses spacecraft have been subject to a large number of publications and discussed in previous reports.…”

Section: Interstellar and Interplanetary Dust In The Heliospherementioning

confidence: 99%

Division E Commission 49: Interplanetary Plasma and Heliosphere

Mann¹,

Manoharan²,

Gopalswamy³

et al. 2015

Proc. IAU

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Abstract. After a little more than forty years of work related to the interplanetary plasma and the heliosphere the IAU's Commission 49 was formally discontinued in 2015. The commission started its work when the first spacecraft were launched to measure the solar wind in-situ away from Earth orbit, both inward and outward from 1 AU. It now hands over its activities to a new commission during an era of space research when Voyager 1 measures in-situ the parameters of the local interstellar medium at the edge of the heliosphere. The commission will be succeeded by C.E3 with a similar area of responsibility but with more focused specific tasks that the community intends to address during the coming several years. This report includes a short description of the motivation for this commission and of the historical context. It then describes work from 2012 to 2015 during the present solar cycle 24 that has been the weakest in the space era so far. It gave rise to a large number of studies on solar energetic particles and cosmic rays. Other studies addressed e.g. the variation of the solar wind structure and energetic particle fluxes on long time scales, the detection of dust in the solar wind and the Voyager measurements at the edge of the heliosphere. The research is based on measurements from spacecraft that are at present operational and motivated by the upcoming Solar Probe + and Solar Orbiter missions to explore the vicinity of the Sun. We also report here the progress on new and planned radio instruments and their importance for heliospheric studies. Contributors to this report are

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Section: Interstellar and Interplanetary Dust In The Heliospherementioning

confidence: 99%

Division E Commission 49: Interplanetary Plasma and Heliosphere

Mann¹,

Manoharan²,

Gopalswamy³

et al. 2015

Proc. IAU

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“…The assumed plasma is the most general case of a plasma in terms of the involved components. Some applications relevant to the problem considered here have been identified: In the solar system, interstellar dust gains are charged by electrons, protons, and alpha particles [11][12][13] . In addition to these ions, other highly charged ions of carbon, oxygen, and nitrogen contribute to the charging of dust in the solar wind plasma 14,15 .…”

Section: Introductionmentioning

confidence: 99%

Intrinsic fluctuations of dust grain charge in multi-component plasmas

Shotorban

2014

Physics of Plasmas

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A master equation is formulated to model the states of the grain charge in a general multi-component plasma, where there are electrons and various kinds of positive or negative ions that are singly or multiply charged. A Fokker-Planck equation is developed from the master equation through the system-size expansion method. The Fokker-Planck equation has a Gaussian solution with a mean and variance governed by two initialvalue differential equations involving the rates of the attachment of ions and electrons to the dust grain. Grain charging in a plasma containing electrons, protons and alpha particles with Maxwellian distributions is considered as an example problem. The Gaussian solution is in very good agreement with the master equation solution numerically obtained for this problem.

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Dust dynamic pressure and magnetopause displacement: reasons for non-detection

Cited by 2 publications

References 25 publications

Division E Commission 49: Interplanetary Plasma and Heliosphere

Division E Commission 49: Interplanetary Plasma and Heliosphere

Intrinsic fluctuations of dust grain charge in multi-component plasmas

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