- Letter
- Open access
- Published:
First optical observation of the Moon’s sodium exosphere from the lunar orbiter SELENE (Kaguya)
Earth, Planets and Space volume 61, pages 1025–1029 (2009)
Abstract
The first successful observations of resonant scattering emission from the lunar sodium exosphere were made from the lunar orbiter SELENE (Kaguya) using TVIS instruments during the period 17–19 December, 2008. The emission intensity of the NaD-line decreased by 12±6%, with an average value of 5.4 kR (kilorayleighs) in this period, which was preceded, by 1 day, by enhancement of the solar proton flux associated with a corotating interaction region. The results suggest that solar wind particles foster the diffusion of sodium atoms or ions in the lunar regolith up to the surface and that the time scale of the diffusion is a few tens of hours. The declining activity of the Geminid meteor shower is also one possible explanation for the decreasing sodium exosphere.
References
Hodges, R. R., Jr., Helium and hydrogen in the lunar atmosphere, J. Geophys. Res., 78(34), 8055–8064, 1973.
Hodges, R. R., Jr., Formation of the lunar atmosphere, Moon, 14, 139–157, 1975.
Hoffman, J. H., R. R. Hodges Jr., and D. E. Evans, Lunar atmospheric composition results from Apollo 17, Proc. Lunar Sci. Conf., 4th, 2875–2875, 1973.
Hunten, D. M., R.W. H. Kozlowski, and A. L. Sprague, A possible meteor shower on the Moon, Geophys. Res. Lett., 18, 2101–2104, 1991.
Hunten, D. M., G. Cremonese, A. L. Sprague, R. E. Hill, S. Verani, and R. W. H. Kozlowski, The Leonid meteor shower and the lunar sodium atmosphere, Icarus, 136, 298–303, 1998.
Kato, M., S. Sasaki, K. Tanaka, Y. Iijima, and Y. Takizawa, The Japanese lunar mission SELENE: Science goals and present status, Adv. Space Res., 42, 294–300, 2008.
McGrath, M. A., R. E. Johnson, and L. J. Lanzerotti, Sputtering of sodium on the planet Mercury, Nature, 323, 694–696, 1986.
Mendillo, M., J. Baumgardner, and J. K. Wilson, Observational test for the solar wind origin of the Moon’s sodium atmosphere, Icarus, 137, 13–23, 1999.
Potter, A. E. and T. H. Morgan, Discovery of sodium and potassium vapor in the atmosphere of the Moon, Science, 241, 675–680, 1988.
Potter, A. E. and T. H. Morgan, Observations of the lunar sodium exosphere, Geophys. Res. Lett., 18(11), 2089–2092, 1991.
Potter, A. E. and T. H. Morgan, Variation of lunar sodium emission intensity with phase angle, Geophys. Res. Lett., 21(21), 2263–2266, 1994.
Potter, A. E., R. M. Killen, and T. H. Morgan, Variation of lunar sodium during passage of the Moon through Earth’s magnetotail, J. Geophys. Res., 105, 15,073–15,084, 2000.
Smith, S. M., J. K. Wilson, J. Baumgardner, and M. Mendillo, Discovery of the distant lunar sodium tail and its enhancement following the Leonid meteor shower of 1998, Geophys. Res. Lett., 26, 1649–1652, 1999.
Sprague, A. L., R. W. H. Kozlowski, D. M. Hunten, W. K. Wells, and F. A. Grosse, The sodium and potassium atmosphere of the Moon and its interaction with the surface, Icarus, 96, 27–42, 1992.
Stern, S. A., The lunar atmosphere: History, status, current problems, and context, Rev. Geophys., 37, 453–491, 1999.
Taguchi, M., T. Sakanoi, S. Okano, M. Kagitani, M. Kikuchi, M. Ejiri, I. Yoshikawa, A. Yamazaki, G. Murakami, K. Yoshioka, S. Kameda, F. Ezawa, T. Toyota, W. Miyake, M. Nakamura, and K. Shiokawa, The Upper atmosphere and Plasma Imager/the Telescope of Visible light (UPI/TVIS) onboard the Kaguya spacecraft, Earth Planets Space, 2009 (submitted).
Tyler, A. L., R. W. H. Kozlowski, and D. M. Hunten, Observations of sodium in the tenuous lunar atmosphere, Geophys. Res. Lett., 15(10), 1141–1144, 1988.
Verani, S., C. Barbieri, C. R. Benn, and G. Cremonese, Possible detection of meteor stream effects on the lunar sodium atmosphere, Planet. Space Sci., 46, 1003–1006, 1998.
Verani, S., C. Barbieri, C. R. Benn, G. Cremonese, and M. Mendillo, Possible detection of meteor stream effects on the lunar sodium atmosphere, Mon. Not. R. Astron. Soc., 327, 244–248, 2001.
Wilson, J. K., S. M. Smith, J. Baumgardner, and M. Mendillo, Modeling an enhancement of the lunar sodium atmosphere and tail during the Leonid meteor shower of 1998, Geophys. Res. Lett., 26, 1645–1648, 1999.
Wilson, J. K., M. Mendillo, and H. E. Spence, Magnetospheric influence on the Moon’s exosphere, J. Geophys. Res., 111, A07207, doi:10.1029/2005JA011364, 2006.
Yamazaki, A., S. Tashiro, Y. Nakasaka, I. Yoshikawa, W. Miyake, and M. Nakamura, Sounding-rocket observation of O II 83.4-nm emission over the polar ionosphere, Geophys. Res. Lett., 29, 2005, 2002.
Yoshikawa, I., M. Nakamura, M. Hirahara, Y. Takizawa, K. Yamashita, H. Kunieda, T. Yamazaki, K. Misaki, and A. Yamaguchi, Observation of He II emission from the plasmasphere by a newly developed EUV telescope on board sounding rocket S-520-19, J. Geophys. Res., 109, 19897, 1997.
Yoshikawa, I., A. Yamazaki, G. Murakami, K. Yoshioka, S. Kameda, F. Ezawa, T. Toyota, W. Miyake, M. Taguchi, M. Kikuchi, and M. Nakamura, Telescope of extreme ultraviolet (TEX) onboard SELENE: science from the Moon, Earth Planets Space, 60, 407–416, 2008.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.
The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/.
About this article
Cite this article
Kagitani, M., Taguchi, M., Yamazaki, A. et al. First optical observation of the Moon’s sodium exosphere from the lunar orbiter SELENE (Kaguya). Earth Planet Sp 61, 1025–1029 (2009). https://doi.org/10.1186/BF03352953
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1186/BF03352953