Enhanced Energetic Neutral Atom Imaging
Over the past two decades, instruments designed to image plasmas in energetic neutral atom (ENA) emission have flown in space. In contrast to typical satellite-based in situ instruments, ENA imagers provide a global view of the magnetosphere because they remotely measure ion distributions via neutra...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2019-02-01
|
| Series: | Frontiers in Astronomy and Space Sciences |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/article/10.3389/fspas.2019.00009/full |
| _version_ | 1817979610422312960 |
|---|---|
| author | Earl E. Scime Amy M. Keesee |
| author_facet | Earl E. Scime Amy M. Keesee |
| author_sort | Earl E. Scime |
| collection | DOAJ |
| description | Over the past two decades, instruments designed to image plasmas in energetic neutral atom (ENA) emission have flown in space. In contrast to typical satellite-based in situ instruments, ENA imagers provide a global view of the magnetosphere because they remotely measure ion distributions via neutrals that are not tied to the magnetic field. An intrinsic challenge that arises during analysis of magnetospheric ENA images is that the ENA fluxes are integrated along the line-of-sight of the instrument. We propose a method of enhancing ENA emission from a localized region in space, thereby enabling spatially resolved measurements of ENA emission in a remotely obtained ENA image. Here we show that releases of modest volumes (~1.4 m3) of liquid hydrogen in space are sufficient to accomplish the ENA localization. |
| first_indexed | 2024-04-13T22:44:45Z |
| format | Article |
| id | doaj.art-9a68321a41d04546a4345fcd174e1e56 |
| institution | Directory Open Access Journal |
| issn | 2296-987X |
| language | English |
| last_indexed | 2024-04-13T22:44:45Z |
| publishDate | 2019-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Astronomy and Space Sciences |
| spelling | doaj.art-9a68321a41d04546a4345fcd174e1e562022-12-22T02:26:27ZengFrontiers Media S.A.Frontiers in Astronomy and Space Sciences2296-987X2019-02-01610.3389/fspas.2019.00009426535Enhanced Energetic Neutral Atom ImagingEarl E. Scime0Amy M. Keesee1Department of Physics and Astronomy, West Virginia University, Morgantown, WV, United StatesDepartment of Physics and Space Science Center, University of New Hampshire, Durham, NH, United StatesOver the past two decades, instruments designed to image plasmas in energetic neutral atom (ENA) emission have flown in space. In contrast to typical satellite-based in situ instruments, ENA imagers provide a global view of the magnetosphere because they remotely measure ion distributions via neutrals that are not tied to the magnetic field. An intrinsic challenge that arises during analysis of magnetospheric ENA images is that the ENA fluxes are integrated along the line-of-sight of the instrument. We propose a method of enhancing ENA emission from a localized region in space, thereby enabling spatially resolved measurements of ENA emission in a remotely obtained ENA image. Here we show that releases of modest volumes (~1.4 m3) of liquid hydrogen in space are sufficient to accomplish the ENA localization.https://www.frontiersin.org/article/10.3389/fspas.2019.00009/fullmagnetosphereactive space experimentenergetic neutral atomscharge exchangegeocoronaion energy spectra |
| spellingShingle | Earl E. Scime Amy M. Keesee Enhanced Energetic Neutral Atom Imaging Frontiers in Astronomy and Space Sciences magnetosphere active space experiment energetic neutral atoms charge exchange geocorona ion energy spectra |
| title | Enhanced Energetic Neutral Atom Imaging |
| title_full | Enhanced Energetic Neutral Atom Imaging |
| title_fullStr | Enhanced Energetic Neutral Atom Imaging |
| title_full_unstemmed | Enhanced Energetic Neutral Atom Imaging |
| title_short | Enhanced Energetic Neutral Atom Imaging |
| title_sort | enhanced energetic neutral atom imaging |
| topic | magnetosphere active space experiment energetic neutral atoms charge exchange geocorona ion energy spectra |
| url | https://www.frontiersin.org/article/10.3389/fspas.2019.00009/full |
| work_keys_str_mv | AT earlescime enhancedenergeticneutralatomimaging AT amymkeesee enhancedenergeticneutralatomimaging |