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Multiscale Currents...
Multiscale Currents Observed by MMS in the Flow Braking Region
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- Nakamura, Rumi (författare)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Varsani, Ali (författare)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Genestreti, Kevin J. (författare)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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visa fler...
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- Le Contel, Olivier (författare)
- UPMC Univ Paris 06, Univ Paris Sud, Observ Paris, Ecole Polytech, CNRS, Lab Phys Plasmas, Paris, France
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- Nakamura, Takuma (författare)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Baumjohann, Wolfgang (författare)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Nagai, Tsugunobu (författare)
- Tokyo Inst Technol, Earth & Planetary Sci, Tokyo, Japan.
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- Artemyev, Anton (författare)
- Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA.,St Petersburg State Univ, Earths Phys Dept, St Petersburg, Russia,Southwest Res Inst, San Antonio, TX USA,Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI, USA
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- Birn, Joachim (författare)
- Space Sci Inst, Boulder, CO USA.
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- Sergeev, Victor A. (författare)
- St Petersburg State Univ, Earths Phys Dept, St Petersburg, Russia.
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- Apatenkov, Sergey (författare)
- St Petersburg State Univ, Earths Phys Dept, St Petersburg, Russia.
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- Ergun, Robert E. (författare)
- Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA.
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- Fuselier, Stephen A. (författare)
- Southwest Res Inst, San Antonio, TX USA.
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- Gershman, Daniel J. (författare)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
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- Giles, Barbara J. (författare)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
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- Khotyaintsev, Yuri V. (författare)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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- Lindqvist, Per-Arne (författare)
- KTH,Rymd- och plasmafysik,Royal Inst Technol, Stockholm, Sweden
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- Magnes, Werner (författare)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Mauk, Barry (författare)
- Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
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- Petrukovich, Anatoli (författare)
- RAS, Space Res Inst IKI, Moscow, Russia.
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- Russell, Christopher T. (författare)
- Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA.
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- Stawarz, Julia (författare)
- Imperial Coll London, Dept Phys, London, England.
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- Strangeway, Robert J. (författare)
- Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA.
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- Anderson, Brian (författare)
- Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
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- Burch, James L. (författare)
- Southwest Res Inst, San Antonio, TX USA.
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- Bromund, Ken R. (författare)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
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- Cohen, Ian (författare)
- Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
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- Fischer, David (författare)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Jaynes, Allison (författare)
- Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA.
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- Kepko, Laurence (författare)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
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- Le, Guan (författare)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
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- Plaschke, Ferdinand (författare)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Reeves, Geoff (författare)
- CSES, LANL, Los Alamos, NM USA.
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- Singer, Howard J. (författare)
- NOAA, Space Weather Predict Ctr, Boulder, CO USA.
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- Slavin, James A. (författare)
- Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI 48109 USA.
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- Torbert, Roy B. (författare)
- Southwest Res Inst, San Antonio, TX USA.;Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA.
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- Turner, Drew L. (författare)
- Aerosp Corp, Space Sci Dept, POB 92957, Los Angeles, CA 90009 USA.
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Austrian Acad Sci, Space Res Inst, Graz, Austria UPMC Univ Paris 06, Univ Paris Sud, Observ Paris, Ecole Polytech, CNRS, Lab Phys Plasmas, Paris, France (creator_code:org_t)
- AMER GEOPHYSICAL UNION, 2018
- 2018
- Engelska.
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Ingår i: Journal of Geophysical Research - Space Physics. - : AMER GEOPHYSICAL UNION. - 2169-9380 .- 2169-9402. ; 123:2, s. 1260-1278
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We present characteristics of current layers in the off-equatorial near-Earth plasma sheet boundary observed with high time-resolution measurements from the Magnetospheric Multiscale mission during an intense substorm associated with multiple dipolarizations. The four Magnetospheric Multiscale spacecraft, separated by distances of about 50 km, were located in the southern hemisphere in the dusk portion of a substorm current wedge. They observed fast flow disturbances (up to about 500 km/s), most intense in the dawn-dusk direction. Field-aligned currents were observed initially within the expanding plasma sheet, where the flow and field disturbances showed the distinct pattern expected in the braking region of localized flows. Subsequently, intense thin field-aligned current layers were detected at the inner boundary of equatorward moving flux tubes together with Earthward streaming hot ions. Intense Hall current layers were found adjacent to the field-aligned currents. In particular, we found a Hall current structure in the vicinity of the Earthward streaming ion jet that consisted of mixed ion components, that is, hot unmagnetized ions, cold ExB drifting ions, and magnetized electrons. Our observations show that both the near-Earth plasma jet diversion and the thin Hall current layers formed around the reconnection jet boundary are the sites where diversion of the perpendicular currents take place that contribute to the observed field-aligned current pattern as predicted by simulations of reconnection jets. Hence, multiscale structure of flow braking is preserved in the field-aligned currents in the off-equatorial plasma sheet and is also translated to ionosphere to become a part of the substorm field-aligned current system.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
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- Av författaren/redakt...
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Nakamura, Rumi
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Varsani, Ali
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Genestreti, Kevi ...
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Le Contel, Olivi ...
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Nakamura, Takuma
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Baumjohann, Wolf ...
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visa fler...
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Nagai, Tsugunobu
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Artemyev, Anton
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Birn, Joachim
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Sergeev, Victor ...
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Apatenkov, Serge ...
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Ergun, Robert E.
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Fuselier, Stephe ...
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Gershman, Daniel ...
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Giles, Barbara J ...
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Khotyaintsev, Yu ...
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Lindqvist, Per-A ...
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Magnes, Werner
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Mauk, Barry
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Petrukovich, Ana ...
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Russell, Christo ...
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Stawarz, Julia
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Strangeway, Robe ...
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Anderson, Brian
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Burch, James L.
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Bromund, Ken R.
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Cohen, Ian
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Fischer, David
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Jaynes, Allison
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Kepko, Laurence
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Le, Guan
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Plaschke, Ferdin ...
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Reeves, Geoff
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Singer, Howard J ...
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Slavin, James A.
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Torbert, Roy B.
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Turner, Drew L.
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- NATURVETENSKAP
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NATURVETENSKAP
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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Kungliga Tekniska Högskolan
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Uppsala universitet