Press Release on Solar Wind Research: September-2018

Solar Wind Is Blasting Earth’s Oxygen Onto The Surface of The Moon

We all apprehend that there is no air to breathe on the Moon, however new proof suggests that the satellite surface is frequently being showered by gas escaping Earth – and should are for billions of years, since Earth’s atmosphere developed.

Scientists have discovered that gas ions from Earth’s atmosphere area unit transported to the Moon once a month, throughout a five-day window once the satellite satellite passes through our planet’s protecting magnetic flux. during this time, the Moon passes behind Earth, obtaining a brief reprieve from the blast of the Sun’s solar radiation – and is besprent with a stream of fabric fleeing Earth instead. [1]

Ion Free-Energy Sources Drive Instabilities in Half the Solar Wind

We assess solar radiation stability against particle sources of free energy victimisation Nyquist’s instability criterion on spectra from the Wind satellite. In distinction to threshold models that embrace one free-energy supply, this technique includes the results of nucleon and alpha temperature property with regard to the background field of force in addition as relative drifts between the nucleon core, nucleon beam, and alpha elements on stability. The numerical implementation of this instability analysis technique is represented, with comparisons to canonical examples. victimisation the primary nominal spectra of the day from 309 days of 2016 and 2017, we discover that fifty three.7% ar unstable once the particle elements ar sculptural as drifting bi-Maxwellians; solely four.5% of the spectra are unstable to long-wavelength instabilities. [2]

Analysis of processes in the solar wind in a thin layer adjacent to the front of the shock wave

A two-dimensional stationary system of nonlinear MHD equations in an exceedingly skinny layer adjacent the front of the heavenly body undulation is solved . Previously, offered publications targeted on linear transport equations. however the presence of high energy particles within the solar radiation needs taking under consideration the processes of self-action. Our analysis considers the nonlinear terms within the MHD equations. an answer is made for 3 cases: 1) within the absence of magnetic reconnections; 2) for magnetic reconnections; 3) with the synchronal action of reconnections and fusions of magnetic islands. altogether 3 cases the outcomes are found for the most parameters of the solar radiation. [3]

Generation of suprathermal ions and shock dynamics during variable upstream solar wind conditions

A collisionless shock may be a dynamic, self-regulatory system that response to the solar radiation energy input. At a shock, the solar radiation K.E. is regenerate into plasma heating and particle acceleration. Any changes of its the upstream plasma conditions could end in forceful changes of its world and native structure and therefore the generated suprathermal particle population. [4]

Solar Wind, Earth’s Rotation and Changes in Terrestrial Climate

Solar variability affects Earth climate. it’s projected that this forcing primarily goes via the interaction of the solar radiation with the Earth’s flux, instead of via changes in irradiance, that is mostly assumed. The cyclic variations in solar radiation emission generate corresponding changes within the Earth’s rate of rotation (LOD), as recorded by correlations between spot numbers and LOD-variations. Variations in Earth’s rotation have an effect on not solely the atmospherical circulation however conjointly the ocean circulation. as a result of the ocean water includes a terribly high heat storing capability, changes within the ocean circulation can have an effect on regional climate. The distribution of oceanic water lots conjointly offers rise of irregular changes in water level over the world. throughout the last 6000 years this distribution of ocean water lots looks to own been the dominate water level variable. The El Niño/ENSO events contain a neighborhood, that represent Associate in Nursing interchange of momentum between the solid earth (LOD) and also the equatorial ocean circulation within the Pacific. The 60-year solar-terrestrial cycle controlled the climate Associate in Nursingd main fish stocks within the sea via an oceanic ram down the flow of heat Atlantic water. [5]

Reference

[1] Solar Wind Is Blasting Earth’s Oxygen Onto The Surface of The Moon

PETER DOCKRILL, 31 JAN 2017 (web link)

[2] Ion Free-Energy Sources Drive Instabilities in Half the Solar Wind

Klein KG, Alterman BL, Stevens ML, Vech D, Kasper JC. Ion Free-Energy Sources Drive Instabilities in Half the Solar Wind. InSolar Heliospheric and INterplanetary Environment (SHINE 2018), Proceedings of the conference held 30 July-3 August, 2018 in Cocoa Beach, FL, id. 6 2018 Jul.  (web link)

[3] Analysis of processes in the solar wind in a thin layer adjacent to the front of the shock wave

Atamaniuk B, Anatolievich Molotkov I, Matyjasiak B, Rothkaehl H, Przepiórka D. Analysis of processes in the solar wind in a thin layer adjacent to the front of the shock wave. InEGU General Assembly Conference Abstracts 2018 Apr (Vol. 20, p. 18951). (web link)

[4] Generation of suprathermal ions and shock dynamics during variable upstream solar wind conditions

Kucharek H, Galvin AB, Farrugia C, Lugaz N. Generation of suprathermal ions and shock dynamics during variable upstream solar wind conditions. InSolar Heliospheric and INterplanetary Environment (SHINE 2018), Proceedings of the conference held 30 July-3 August, 2018 in Cocoa Beach, FL, id. 59 2018 Jul. (web link)

[5] Solar Wind, Earth’s Rotation and Changes in Terrestrial Climate

Nils-Axel Mörner1*

1Paleogeophysics and Geodynamics, Rösundavägen 17, 13336 Saltsjöbaden, Sweden. (web link)

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