Remote energetic neutral atom imaging of electric potential over a lunar magnetic anomaly

Futaana, Y. ; Barabash, S. ; Wieser, M. ; Lue, C. ; Wurz, P. ; Vorburger, A. ; Bhardwaj, A. ; Asamura, K. (2013) Remote energetic neutral atom imaging of electric potential over a lunar magnetic anomaly Geophysical Research Letters, 40 (2). pp. 262-266. ISSN 0094-8276

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Official URL: http://dx.doi.org/10.1002/grl.50135

Related URL: http://dx.doi.org/10.1002/grl.50135

Abstract

[1] The formation of electric potential over lunar magnetized regions is essential for understanding fundamental lunar science, for understanding the lunar environment, and for planning human exploration on the Moon. A large positive electric potential was predicted and detected from single point measurements. Here, we demonstrate a remote imaging technique of electric potential mapping at the lunar surface, making use of a new concept involving hydrogen neutral atoms derived from solar wind. We apply the technique to a lunar magnetized region using an existing dataset of the neutral atom energy spectrometer SARA/CENA on Chandrayaan-1. Electrostatic potential larger than +135 V inside the Gerasimovic anomaly is confirmed. This structure is found spreading all over the magnetized region. The widely spread electric potential can influence the local plasma and dust environment near the magnetic anomaly.

Item Type:Article
Source:Copyright of this article belongs to American Geophysical Union.
Keywords:Electric Potential; Magnetic Anomaly; Moon
ID Code:97924
Deposited On:16 Jan 2014 10:53
Last Modified:16 Jan 2014 10:53

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