IBEX-Lo observations of energetic neutral hydrogen atoms originating from the lunar surface

D. F. Rodríguez M.; L. Saul; P. Wurz; S. A. Fuselier; H. O. Funsten; D. J. McComas; E. Möbius

doi:10.1016/j.pss.2011.09.009

IBEX-Lo observations of energetic neutral hydrogen atoms originating from the lunar surface

D. F. Rodríguez M., L. Saul, P. Wurz, S. A. Fuselier, H. O. Funsten, D. J. McComas, E. Möbius

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

In this paper we present quantitative results of observations of energetic neutral atoms (ENAs) originating from the lunar surface. These ENAs, which are hydrogen atoms, are the result of the solar wind protons being reflected from and neutralised at the surface of the Moon. These measurements were made with IBEX-Lo on NASAs IBEX satellite. From these measurements we derive the energy spectrum of the ENAs, their flux, and the lunar albedo for ENAs (i.e, the ratio of ENAs to the incoming solar wind protons). The energy spectra of the ENAs clearly show that their origin is directly from the solar wind via backscattering, and that they are not sputtered atoms. From several observation periods we derived an average global albedo of A _H=0.09±0.05. From the observed energy spectra we derive a generic spectrum for unshielded bodies in the solar wind.

Original language	English (US)
Pages (from-to)	297-303
Number of pages	7
Journal	Planetary and Space Science
Volume	60
Issue number	1
DOIs	https://doi.org/10.1016/j.pss.2011.09.009
State	Published - Jan 2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

ENAs Moon albedo
Energetic neutral atoms
IBEX-Lo
Solar wind

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10.1016/j.pss.2011.09.009

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title = "IBEX-Lo observations of energetic neutral hydrogen atoms originating from the lunar surface",

abstract = "In this paper we present quantitative results of observations of energetic neutral atoms (ENAs) originating from the lunar surface. These ENAs, which are hydrogen atoms, are the result of the solar wind protons being reflected from and neutralised at the surface of the Moon. These measurements were made with IBEX-Lo on NASAs IBEX satellite. From these measurements we derive the energy spectrum of the ENAs, their flux, and the lunar albedo for ENAs (i.e, the ratio of ENAs to the incoming solar wind protons). The energy spectra of the ENAs clearly show that their origin is directly from the solar wind via backscattering, and that they are not sputtered atoms. From several observation periods we derived an average global albedo of A H=0.09±0.05. From the observed energy spectra we derive a generic spectrum for unshielded bodies in the solar wind.",

keywords = "ENAs Moon albedo, Energetic neutral atoms, IBEX-Lo, Solar wind",

author = "{Rodr{\'i}guez M.}, {D. F.} and L. Saul and P. Wurz and Fuselier, {S. A.} and Funsten, {H. O.} and McComas, {D. J.} and E. M{\"o}bius",

note = "Funding Information: We gratefully acknowledge provision of the IBEX data by the IBEX team and IBEX Science Operations Center (ISOC), the IBEX-Lo cross talk matrix by Lee W. Petersen, Uni. New Hampshire, and the IBEX orbits plots by Steve Petrinec. Simulation results of magnetosphere have been provided by the Community Coordinated Modeling Center (CCMC) at Goddard Space Flight Center through their public runs on request system ( http://ccmc.gsfc.nasa.gov ). The CCMC is a multi-agency partnership between NASA, AFMC, AFOSR, AFRL, AFWA, NOAA, NSF and ONR. The BATSRUS with RCM Model was developed by the Dr. Tamas Gombosi et al. at the CSEM. Solar wind data from the ACE is provided by the SWEPAM team. Work on this study by the U.S. authors was supported by the IBEX mission as a part of NASA's Explorers program.",

year = "2012",

month = jan,

doi = "10.1016/j.pss.2011.09.009",

language = "English (US)",

volume = "60",

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journal = "Planetary and Space Science",

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T1 - IBEX-Lo observations of energetic neutral hydrogen atoms originating from the lunar surface

AU - Rodríguez M., D. F.

AU - Saul, L.

AU - Wurz, P.

AU - Fuselier, S. A.

AU - Funsten, H. O.

AU - McComas, D. J.

AU - Möbius, E.

N1 - Funding Information: We gratefully acknowledge provision of the IBEX data by the IBEX team and IBEX Science Operations Center (ISOC), the IBEX-Lo cross talk matrix by Lee W. Petersen, Uni. New Hampshire, and the IBEX orbits plots by Steve Petrinec. Simulation results of magnetosphere have been provided by the Community Coordinated Modeling Center (CCMC) at Goddard Space Flight Center through their public runs on request system ( http://ccmc.gsfc.nasa.gov ). The CCMC is a multi-agency partnership between NASA, AFMC, AFOSR, AFRL, AFWA, NOAA, NSF and ONR. The BATSRUS with RCM Model was developed by the Dr. Tamas Gombosi et al. at the CSEM. Solar wind data from the ACE is provided by the SWEPAM team. Work on this study by the U.S. authors was supported by the IBEX mission as a part of NASA's Explorers program.

PY - 2012/1

Y1 - 2012/1

N2 - In this paper we present quantitative results of observations of energetic neutral atoms (ENAs) originating from the lunar surface. These ENAs, which are hydrogen atoms, are the result of the solar wind protons being reflected from and neutralised at the surface of the Moon. These measurements were made with IBEX-Lo on NASAs IBEX satellite. From these measurements we derive the energy spectrum of the ENAs, their flux, and the lunar albedo for ENAs (i.e, the ratio of ENAs to the incoming solar wind protons). The energy spectra of the ENAs clearly show that their origin is directly from the solar wind via backscattering, and that they are not sputtered atoms. From several observation periods we derived an average global albedo of A H=0.09±0.05. From the observed energy spectra we derive a generic spectrum for unshielded bodies in the solar wind.

AB - In this paper we present quantitative results of observations of energetic neutral atoms (ENAs) originating from the lunar surface. These ENAs, which are hydrogen atoms, are the result of the solar wind protons being reflected from and neutralised at the surface of the Moon. These measurements were made with IBEX-Lo on NASAs IBEX satellite. From these measurements we derive the energy spectrum of the ENAs, their flux, and the lunar albedo for ENAs (i.e, the ratio of ENAs to the incoming solar wind protons). The energy spectra of the ENAs clearly show that their origin is directly from the solar wind via backscattering, and that they are not sputtered atoms. From several observation periods we derived an average global albedo of A H=0.09±0.05. From the observed energy spectra we derive a generic spectrum for unshielded bodies in the solar wind.

KW - ENAs Moon albedo

KW - Energetic neutral atoms

KW - IBEX-Lo

KW - Solar wind

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JO - Planetary and Space Science

JF - Planetary and Space Science

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ER -

IBEX-Lo observations of energetic neutral hydrogen atoms originating from the lunar surface

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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