Reiner Gamma albedo features reproduced by modeling solar wind standoff
| Autor: | Tara Ahmadi, Andrey Divin, Charles Lue, Jan Deca, Mihaly Horanyi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
010504 meteorology & atmospheric sciences General Physics and Astronomy Flux lcsh:Astrophysics Plasma Geophysics Albedo Kinetic energy 01 natural sciences lcsh:QC1-999 Magnetic field Solar wind Astronomi astrofysik och kosmologi 0103 physical sciences Physics::Space Physics lcsh:QB460-466 Astronomy Astrophysics and Cosmology Astrophysics::Earth and Planetary Astrophysics Magnetic anomaly 010303 astronomy & astrophysics Physics::Atmospheric and Oceanic Physics lcsh:Physics 0105 earth and related environmental sciences Lunar swirls |
| Zdroj: | Communications Physics, Vol 1, Iss 1, Pp 1-8 (2018) |
| ISSN: | 2399-3650 |
| Popis: | All lunar swirls are known to be co-located with crustal magnetic anomalies (LMAs). Not all LMAs can be associated with albedo markings, making swirls, and their possible connection with the former, an intriguing puzzle yet to be solved. By coupling fully kinetic simulations with a Surface Vector Mapping model, we show that solar wind standoff, an ion–electron kinetic interaction mechanism that locally prevents weathering by solar wind ions, reproduces the shape of the Reiner Gamma albedo pattern. Our method reveals why not every magnetic anomaly forms a distinct albedo marking. A qualitative match between optical remote observations and in situ particle measurements of the back-scattered ions is simultaneously achieved, demonstrating the importance of a kinetic approach to describe the solar wind interaction with LMAs. The anti-correlation between the predicted amount of surface weathering and the surface reflectance is strongest when evaluating the proton energy flux. Since the Renaissance, the Reiner Gamma formation was identified as a peculiar lunar feature. By combining magnetic field topology based on satellite observations with a full-kinetic plasma model, the authors successfully reproduced the shape of the surface albedo pattern beneath the magnetic anomaly. |
| Databáze: | OpenAIRE |
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