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  • 1
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    Global observations of the interstellar interaction from the Interstellar Boundary Explorer (IBEX) (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-10-17
    Description: The Sun moves through the local interstellar medium, continuously emitting ionized, supersonic solar wind plasma and carving out a cavity in interstellar space called the heliosphere. The recently launched Interstellar Boundary Explorer (IBEX) spacecraft has completed its first all-sky maps of the interstellar interaction at the edge of the heliosphere by imaging energetic neutral atoms (ENAs) emanating from this region. We found a bright ribbon of ENA emission, unpredicted by prior models or theories, that may be ordered by the local interstellar magnetic field interacting with the heliosphere. This ribbon is superposed on globally distributed flux variations ordered by both the solar wind structure and the direction of motion through the interstellar medium. Our results indicate that the external galactic environment strongly imprints the heliosphere.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McComas, D J -- Allegrini, F -- Bochsler, P -- Bzowski, M -- Christian, E R -- Crew, G B -- DeMajistre, R -- Fahr, H -- Fichtner, H -- Frisch, P C -- Funsten, H O -- Fuselier, S A -- Gloeckler, G -- Gruntman, M -- Heerikhuisen, J -- Izmodenov, V -- Janzen, P -- Knappenberger, P -- Krimigis, S -- Kucharek, H -- Lee, M -- Livadiotis, G -- Livi, S -- MacDowall, R J -- Mitchell, D -- Mobius, E -- Moore, T -- Pogorelov, N V -- Reisenfeld, D -- Roelof, E -- Saul, L -- Schwadron, N A -- Valek, P W -- Vanderspek, R -- Wurz, P -- Zank, G P -- New York, N.Y. -- Science. 2009 Nov 13;326(5955):959-62. doi: 10.1126/science.1180906. Epub 2009 Oct 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Southwest Research Institute, San Antonio, TX 78228, USA. dmccomas@swri.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19833923" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Comparison of Interstellar Boundary Explorer observations with 3D global heliospheric models (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-10-17
    Description: Simulations of energetic neutral atom (ENA) maps predict flux magnitudes that are, in some cases, similar to those observed by the Interstellar Boundary Explorer (IBEX) spacecraft, but they miss the ribbon. Our model of the heliosphere indicates that the local interstellar medium (LISM) magnetic field (B(LISM)) is transverse to the line of sight (LOS) along the ribbon, suggesting that the ribbon may carry its imprint. The force-per-unit area on the heliopause from field line draping and the LISM ram pressure is comparable with the ribbon pressure if the LOS approximately 30 to 60 astronomical units and B(LISM) approximately 2.5 microgauss. Although various models have advantages in accounting for some of the observations, no model can explain all the dominant features, which probably requires a substantial change in our understanding of the processes that shape our heliosphere.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schwadron, N A -- Bzowski, M -- Crew, G B -- Gruntman, M -- Fahr, H -- Fichtner, H -- Frisch, P C -- Funsten, H O -- Fuselier, S -- Heerikhuisen, J -- Izmodenov, V -- Kucharek, H -- Lee, M -- Livadiotis, G -- McComas, D J -- Moebius, E -- Moore, T -- Mukherjee, J -- Pogorelov, N V -- Prested, C -- Reisenfeld, D -- Roelof, E -- Zank, G P -- New York, N.Y. -- Science. 2009 Nov 13;326(5955):966-8. doi: 10.1126/science.1180986. Epub 2009 Oct 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Astronomy, Boston University, Boston, MA 02215, USA. nathanas@bu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19833915" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    The heliosphere's interstellar interaction: no bow shock (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-05-15
    Description: As the Sun moves through the local interstellar medium, its supersonic, ionized solar wind carves out a cavity called the heliosphere. Recent observations from the Interstellar Boundary Explorer (IBEX) spacecraft show that the relative motion of the Sun with respect to the interstellar medium is slower and in a somewhat different direction than previously thought. Here, we provide combined consensus values for this velocity vector and show that they have important implications for the global interstellar interaction. In particular, the velocity is almost certainly slower than the fast magnetosonic speed, with no bow shock forming ahead of the heliosphere, as was widely expected in the past.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McComas, D J -- Alexashov, D -- Bzowski, M -- Fahr, H -- Heerikhuisen, J -- Izmodenov, V -- Lee, M A -- Mobius, E -- Pogorelov, N -- Schwadron, N A -- Zank, G P -- New York, N.Y. -- Science. 2012 Jun 8;336(6086):1291-3. doi: 10.1126/science.1221054. Epub 2012 May 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Southwest Research Institute, San Antonio, TX 78228, USA. dmccomas@swri.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22582011" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
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