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dc.contributor.authorSchwadron, N. A.
dc.contributor.authorAllegrini, F.
dc.contributor.authorBzowski, M.
dc.contributor.authorChristian, E. R.
dc.contributor.authorDayeh, M. A.
dc.contributor.authorDeMajistre, R.
dc.contributor.authorFrisch, P.
dc.contributor.authorFunsten, H. O.
dc.contributor.authorFuselier, S. A.
dc.contributor.authorGoodrich, K.
dc.contributor.authorGruntman, M.
dc.contributor.authorJanzen, Paul H.
dc.contributor.authorKucharek, Harald
dc.contributor.authorLivadiotis, G.
dc.contributor.authorMcComas, David J.
dc.contributor.authorMobius, Eberhard
dc.contributor.authorPrested, C.
dc.contributor.authorReisenfeld, D.
dc.contributor.authorReno, M.
dc.contributor.authorRoelof, E.
dc.contributor.authorSiegel, J.
dc.contributor.authorVanderspek, R.
dc.contributor.authorCrew, Geoffrey B.
dc.date.accessioned2015-02-26T16:06:51Z
dc.date.available2015-02-26T16:06:51Z
dc.date.issued2011-03
dc.date.submitted2010-11
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.urihttp://hdl.handle.net/1721.1/95655
dc.description.abstractThe Interstellar Boundary Explorer (IBEX) observes a remarkable feature, the IBEX ribbon, which has energetic neutral atom (ENA) flux over a narrow region ~20° wide, a factor of 2-3 higher than the more globally distributed ENA flux. Here, we separate ENA emissions in the ribbon from the distributed flux by applying a transparency mask over the ribbon and regions of high emissions, and then solve for the distributed flux using an interpolation scheme. Our analysis shows that the energy spectrum and spatial distribution of the ribbon are distinct from the surrounding globally distributed flux. The ribbon energy spectrum shows a knee between ~1 and 4 keV, and the angular distribution is approximately independent of energy. In contrast, the distributed flux does not show a clear knee and more closely conforms to a power law over much of the sky. Consistent with previous analyses, the slope of the power law steepens from the nose to tail, suggesting a weaker termination shock toward the tail as compared to the nose. The knee in the energy spectrum of the ribbon suggests that its source plasma population is generated via a distinct physical process. Both the slope in the energy distribution of the distributed flux and the knee in the energy distribution of the ribbon are ordered by latitude. The heliotail may be identified in maps of globally distributed flux as a broad region of low flux centered ~44°W of the interstellar downwind direction, suggesting heliotail deflection by the interstellar magnetic field.en_US
dc.description.sponsorshipPoland. Ministry of Science and Higher Education (Grant NS-1260-11-09)en_US
dc.description.sponsorshipUnited States. National Aeronautics and Space Administration. Explorers Program (IBEX Mission)en_US
dc.language.isoen_US
dc.publisherIOP Publishingen_US
dc.relation.isversionofhttp://dx.doi.org/10.1088/0004-637x/731/1/56en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAmerican Astronomical Societyen_US
dc.titleSEPARATION OF THE INTERSTELLAR BOUNDARY EXPLORER RIBBON FROM GLOBALLY DISTRIBUTED ENERGETIC NEUTRAL ATOM FLUXen_US
dc.typeArticleen_US
dc.identifier.citationSchwadron, N. A., F. Allegrini, M. Bzowski, E. R. Christian, G. B. Crew, M. Dayeh, R. DeMajistre, et al. “ SEPARATION OF THE INTERSTELLAR BOUNDARY EXPLORER RIBBON FROM GLOBALLY DISTRIBUTED ENERGETIC NEUTRAL ATOM FLUX .” The Astrophysical Journal 731, no. 1 (March 23, 2011): 56. © 2011 The American Astronomical Societyen_US
dc.contributor.departmentHaystack Observatoryen_US
dc.contributor.mitauthorCrew, Geoffrey B.en_US
dc.relation.journalAstrophysical Journalen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsSchwadron, N. A.; Allegrini, F.; Bzowski, M.; Christian, E. R.; Crew, G. B.; Dayeh, M.; DeMajistre, R.; Frisch, P.; Funsten, H. O.; Fuselier, S. A.; Goodrich, K.; Gruntman, M.; Janzen, P.; Kucharek, H.; Livadiotis, G.; McComas, D. J.; Moebius, E.; Prested, C.; Reisenfeld, D.; Reno, M.; Roelof, E.; Siegel, J.; Vanderspek, R.en_US
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


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