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  • 1
    Publication Date: 2012-04-12
    Description: Observations with the Venus Express magnetometer and low-energy particle detector revealed magnetic field and plasma behavior in the near-Venus wake that is symptomatic of magnetic reconnection, a process that occurs in Earth's magnetotail but is not expected in the magnetotail of a nonmagnetized planet such as Venus. On 15 May 2006, the plasma flow in this region was toward the planet, and the magnetic field component transverse to the flow was reversed. Magnetic reconnection is a plasma process that changes the topology of the magnetic field and results in energy exchange between the magnetic field and the plasma. Thus, the energetics of the Venus magnetotail resembles that of the terrestrial tail, where energy is stored and later released from the magnetic field to the plasma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, T L -- Lu, Q M -- Baumjohann, W -- Russell, C T -- Fedorov, A -- Barabash, S -- Coates, A J -- Du, A M -- Cao, J B -- Nakamura, R -- Teh, W L -- Wang, R S -- Dou, X K -- Wang, S -- Glassmeier, K H -- Auster, H U -- Balikhin, M -- New York, N.Y. -- Science. 2012 May 4;336(6081):567-70. doi: 10.1126/science.1217013. Epub 2012 Apr 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chinese Academy of Sciences Key Laboratory of Geospace Environment, University of Science and Technology of China, Hefei 230026, China. tielong.zhang@oeaw.ac.at〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22491094" 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
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  • 2
    Publication Date: 2015-01-24
    Description: The Rosetta mission shall accompany comet 67P/Churyumov-Gerasimenko from a heliocentric distance of 〉3.6 astronomical units through perihelion passage at 1.25 astronomical units, spanning low and maximum activity levels. Initially, the solar wind permeates the thin comet atmosphere formed from sublimation, until the size and plasma pressure of the ionized atmosphere define its boundaries: A magnetosphere is born. Using the Rosetta Plasma Consortium ion composition analyzer, we trace the evolution from the first detection of water ions to when the atmosphere begins repelling the solar wind (~3.3 astronomical units), and we report the spatial structure of this early interaction. The near-comet water population comprises accelerated ions (〈800 electron volts), produced upstream of Rosetta, and lower energy locally produced ions; we estimate the fluxes of both ion species and energetic neutral atoms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nilsson, Hans -- Stenberg Wieser, Gabriella -- Behar, Etienne -- Wedlund, Cyril Simon -- Gunell, Herbert -- Yamauchi, Masatoshi -- Lundin, Rickard -- Barabash, Stas -- Wieser, Martin -- Carr, Chris -- Cupido, Emanuele -- Burch, James L -- Fedorov, Andrei -- Sauvaud, Jean-Andre -- Koskinen, Hannu -- Kallio, Esa -- Lebreton, Jean-Pierre -- Eriksson, Anders -- Edberg, Niklas -- Goldstein, Raymond -- Henri, Pierre -- Koenders, Christoph -- Mokashi, Prachet -- Nemeth, Zoltan -- Richter, Ingo -- Szego, Karoly -- Volwerk, Martin -- Vallat, Claire -- Rubin, Martin -- New York, N.Y. -- Science. 2015 Jan 23;347(6220):aaa0571. doi: 10.1126/science.aaa0571.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Swedish Institute of Space Physics, Post Office Box 812, 981 28 Kiruna, Sweden. Lulea University of Technology, Department of Computer Science, Electrical and Space Engineering, Rymdcampus 1, 981 28 Kiruna, Sweden. hans.nilsson@irf.se. ; Swedish Institute of Space Physics, Post Office Box 812, 981 28 Kiruna, Sweden. ; Swedish Institute of Space Physics, Post Office Box 812, 981 28 Kiruna, Sweden. Lulea University of Technology, Department of Computer Science, Electrical and Space Engineering, Rymdcampus 1, 981 28 Kiruna, Sweden. ; Aalto University, School of Electrical Engineering, Department of Radio Science and Engineering, Post Office Box 13000, FI-00076 Aalto, Finland. ; Belgian Institute for Space Aeronomy, Avenue Circulaire 3, 1180 Brussels, Belgium. ; Imperial College London, Exhibition Road, London SW7 2AZ, UK. ; Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238, USA. ; Institut de Recherche en Astrophysique et Planetologie, Toulouse, France. ; Department of Physics, University of Helsinki, Post Office Box 64, FI-00014 Helsinki, Finland. Finnish Meteorological Institute, Post Office Box 503, FI-00101 Helsinki, Finland. ; Aalto University, School of Electrical Engineering, Department of Radio Science and Engineering, Post Office Box 13000, FI-00076 Aalto, Finland. Finnish Meteorological Institute, Post Office Box 503, FI-00101 Helsinki, Finland. ; Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), UMR 7328 CNRS-Universite d'Orleans, France. ; Swedish Institute of Space Physics, Angstrom Laboratory, Lagerhyddsvagen 1, Uppsala, Sweden. ; Technicsche Universitat-Braunschweig, Institute for Geophysics and Extraterrestrial Physics, Mendelssohnstrasse 3, D-38106 Braunschweig, Germany. ; Wigner Research Centre for Physics, 1121 Konkoly Thege Street 29-33, Budapest, Hungary. ; Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042 Graz, Austria. ; Rosetta Science Ground Segment, Science and Robotic Exploration (SRE-OOR), Office A006, European Space Astronomy Centre, Post Office Box 78, 28691 Villanueva de la Canada, Madrid, Spain. ; Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25613894" 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
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  • 3
    ISSN: 0992-7689
    Keywords: Magnetospheric physics (auroral phenomena; magnetotail boundary layers; instruments and techniques)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The PROMICS-3 instrument on Interball-2 is nominally identical to the PROMICS-3 instrument on Interball-1. It performs three-dimensional measurements of ions in the energy range 4 eV–70 keV with mass separation and of electrons in the energy range 300 eV–35 keV. Interball-2 was launched on August 29, 1996, into an orbit with the same inclination as that of Interball-1, 63°, but with apogee at 20 000 km. In this study the PROMICS-3 instrument on Interball-2 is briefly described and examples of the first results are presented. Firstly, we report observations of upward moving molecular ions with energies of up to 700 eV at the poleward edge of the auroral oval. Previous observations of outflowing molecular ions have been at lower altitudes and lower energies. Secondly, we show observations of dawnside magnetosheath plasma injections. Using conjugate data from both PROMICS-3 instruments we have found dispersion structures above the morningside auroral oval, which occurred simultaneously with isolated “pockets” of magnetosheath plasma at a distance of XGSM = −14 to −12 RE, which had been injected into the inner part of the low-latitude boundary layer. These isolated plasma structures were sites of strong field-aligned currents and are proposed to be the magnetospheric counterparts of the dispersion structures.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0992-7689
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract PROMICS-3 is a plasma experiment flown in the Russian project Interball. It performs three-dimensional (3D) measurements of ions in the energy range 4 eV–70 keV with mass separation and of electrons in the energy range 12 eV–35 keV. The Interball project consists of two main satellites, the Tail Probe and the Auroral Probe, each with one subsatellite. The Interball Tail Probe was launched on 3 August 1995, into a 65° inclination orbit with apogee at about 30 RE. Both main satellites carry identical PROMICS-3 instruments and thus direct comparisons of the particle distributions will be possible once the Auroral Probe is launched. Furthermore, PROMICS-3-Tail is the first instrument measuring the 3D ion distribution function in the magnetospheric boundary layers at high latitudes. In this paper we describe the PROMICS-3 instrument and show initial results from the Tail probe, measurements of the mag-netosheath, plasma sheet, and ring current plasmas.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Previous missions to Mars have shown (see, for example, ref. 1) that the interaction with the solar wind forms both a bow shock and a magnetopause. There is2 a smooth transition from the shocked solar-wind plasma to the hot plasma cushion above the ionosphere, which closely resembles the solar-wind ...
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Venus has no significant internal magnetic field, which allows the solar wind to interact directly with its atmosphere2,3. A field is induced in this interaction, which partially shields the atmosphere, but we have no knowledge of how effective that shield is at solar minimum. ...
    Type of Medium: Electronic Resource
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