| Literature DB >> 19833916 |
S A Fuselier1, F Allegrini, H O Funsten, A G Ghielmetti, D Heirtzler, H Kucharek, O W Lennartsson, D J McComas, E Möbius, T E Moore, S M Petrinec, L A Saul, J A Scheer, N Schwadron, P Wurz.
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 (approximately 20 degrees average width) but long (extending over 300 degrees 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 approximately 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.Entities:
Year: 2009 PMID： 19833916 DOI： 10.1126/science.1180981
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728