Details

Autor(en) / Beteiligte

• Wang, X.-D.
• Bian, W.
• Wang, J.-S.
• Liu, J.-J.
• Zou, Y.-L.
• Zhang, H.-B.
• Lü, C.
• Liu, J.-Z.
• Zuo, W.
• Su, Y.
• Wen, W.-B.
• Wang, M.
• Ouyang, Z.-Y.
• Li, C.-L.

Titel

Acceleration of scattered solar wind protons at the polar terminator of the Moon: Results from Chang'E-1/SWIDs

Ist Teil von

• Geophysical research letters, 2010-04, Vol.37 (7), p.n/a

Ort / Verlag

Washington, DC: Blackwell Publishing Ltd

Erscheinungsjahr

2010

Quelle

Wiley Online Library All Journals

Beschreibungen/Notizen

• We report accelerated particles observed by Solar Wind Ion Detectors (SWIDs) on Chang'E‐1 spacecraft close to terminator regions of the Moon. As the spacecraft crosses the terminator, a stream of ions with energy of ∼200eV/q are detected. As the spacecraft moves to the anti‐subsolar point of the Moon, the energy of these ions increase by 600 ∼ 1500eV. This phenomenon occurs at north/south pole when IMF By component is dominant and negative/positive. It is proposed these particles are scattered solar wind protons, accelerated by the convection electric field of the solar wind and E × B drift in the ambipolar electric field at the flank of the lunar wake. This mechanism allows a new portion of solar wind protons to enter the central lunar wake, and provides a possibility to study the property of proton scattering at the dayside of the Moon.