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Width and Variation of the ENA Flux Ribbon Observed by the Interstellar Boundary Explorer.

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Title: Width and Variation of the ENA Flux Ribbon Observed by the Interstellar Boundary Explorer.
Authors: Fuselier, S. A., Allegrini, F., Funsten, H. O., Ghielmetti, A. G., Heirtzler, D., Kucharek, H., Lennartsson, O. W., McComas, D. J., Möbius, E., Moore, T. E., Petrinec, S. M., Saul, L. A., Scheer, J. A., Schwadron, N., Wurz, P.
Source: Science (pre-March 2025). 11/13/2009, Vol. 326 Issue 5955, p962-964. 3p.
Subjects: Astronomical observations, Heliosphere, Solar wind, Interstellar medium, Solar energetic particles, Hydrogen ions, Ionized gases
Abstract: The dominant feature in Interstellar Boundary Explorer (IBEX) sky maps of heliospheric energetic neutral atom (ENA) flux is a ribbon of enhanced flux that extends over a broad range of ecliptic latitudes and longitudes. It is narrow (~20° average width) but long (extending over 300° in the sky) and is observed at energies from 0.2 to 6 kilo-electron volts. We demonstrate that the flux in the ribbon is a factor of 2 to 3 times higher than that of the more diffuse, globally distributed heliospheric ENA flux. The ribbon is most pronounced at ~1 kilo-electron volt. The average width of the ribbon is nearly constant, independent of energy. The ribbon is likely the result of an enhancement in the combined solar wind and pickup ion populations in the heliosheath. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Width and Variation of the ENA Flux Ribbon Observed by the Interstellar Boundary Explorer.
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  Data: <searchLink fieldCode="AR" term="%22Fuselier%2C+S%2E+A%2E%22">Fuselier, S. A.</searchLink><br /><searchLink fieldCode="AR" term="%22Allegrini%2C+F%2E%22">Allegrini, F.</searchLink><br /><searchLink fieldCode="AR" term="%22Funsten%2C+H%2E+O%2E%22">Funsten, H. O.</searchLink><br /><searchLink fieldCode="AR" term="%22Ghielmetti%2C+A%2E+G%2E%22">Ghielmetti, A. G.</searchLink><br /><searchLink fieldCode="AR" term="%22Heirtzler%2C+D%2E%22">Heirtzler, D.</searchLink><br /><searchLink fieldCode="AR" term="%22Kucharek%2C+H%2E%22">Kucharek, H.</searchLink><br /><searchLink fieldCode="AR" term="%22Lennartsson%2C+O%2E+W%2E%22">Lennartsson, O. W.</searchLink><br /><searchLink fieldCode="AR" term="%22McComas%2C+D%2E+J%2E%22">McComas, D. J.</searchLink><br /><searchLink fieldCode="AR" term="%22Möbius%2C+E%2E%22">Möbius, E.</searchLink><br /><searchLink fieldCode="AR" term="%22Moore%2C+T%2E+E%2E%22">Moore, T. E.</searchLink><br /><searchLink fieldCode="AR" term="%22Petrinec%2C+S%2E+M%2E%22">Petrinec, S. M.</searchLink><br /><searchLink fieldCode="AR" term="%22Saul%2C+L%2E+A%2E%22">Saul, L. A.</searchLink><br /><searchLink fieldCode="AR" term="%22Scheer%2C+J%2E+A%2E%22">Scheer, J. A.</searchLink><br /><searchLink fieldCode="AR" term="%22Schwadron%2C+N%2E%22">Schwadron, N.</searchLink><br /><searchLink fieldCode="AR" term="%22Wurz%2C+P%2E%22">Wurz, P.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 11/13/2009, Vol. 326 Issue 5955, p962-964. 3p.
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  Data: <searchLink fieldCode="DE" term="%22Astronomical+observations%22">Astronomical observations</searchLink><br /><searchLink fieldCode="DE" term="%22Heliosphere%22">Heliosphere</searchLink><br /><searchLink fieldCode="DE" term="%22Solar+wind%22">Solar wind</searchLink><br /><searchLink fieldCode="DE" term="%22Interstellar+medium%22">Interstellar medium</searchLink><br /><searchLink fieldCode="DE" term="%22Solar+energetic+particles%22">Solar energetic particles</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+ions%22">Hydrogen ions</searchLink><br /><searchLink fieldCode="DE" term="%22Ionized+gases%22">Ionized gases</searchLink>
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  Data: The dominant feature in Interstellar Boundary Explorer (IBEX) sky maps of heliospheric energetic neutral atom (ENA) flux is a ribbon of enhanced flux that extends over a broad range of ecliptic latitudes and longitudes. It is narrow (~20° average width) but long (extending over 300° in the sky) and is observed at energies from 0.2 to 6 kilo-electron volts. We demonstrate that the flux in the ribbon is a factor of 2 to 3 times higher than that of the more diffuse, globally distributed heliospheric ENA flux. The ribbon is most pronounced at ~1 kilo-electron volt. The average width of the ribbon is nearly constant, independent of energy. The ribbon is likely the result of an enhancement in the combined solar wind and pickup ion populations in the heliosheath. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – SubjectFull: Solar wind
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