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

Futaana, Y.; Barabash, S.; Wieser, M.; Lue, C.; Wurz, Peter; Vorburger, Audrey; 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. American Geophysical Union 10.1002/grl.50135

[img]
Preview
Text
grl50135.pdf - Published Version
Available under License Publisher holds Copyright.

Download (2MB) | Preview

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:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences

UniBE Contributor:

Wurz, Peter and Vorburger, Audrey

Subjects:

500 Science > 520 Astronomy
600 Technology > 620 Engineering
500 Science > 530 Physics

ISSN:

0094-8276

Publisher:

American Geophysical Union

Language:

English

Submitter:

Cléa Serpollier

Date Deposited:

11 Jul 2014 12:01

Last Modified:

09 Oct 2015 19:32

Publisher DOI:

10.1002/grl.50135

BORIS DOI:

10.7892/boris.44363

URI:

https://boris.unibe.ch/id/eprint/44363

Actions (login required)

Edit item Edit item
Provide Feedback