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In situ observations of high-Mach number collisionless shocks in space plasmas


In situ observations of high-Mach number collisionless shocks in space plasmas

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dc.contributor.author Masters, A. pl
dc.contributor.author Stawarz, Łukasz [SAP11018649] pl
dc.contributor.author Fujimoto, M. pl
dc.contributor.author Schwartz, S. J. pl
dc.contributor.author Sergis, N. pl
dc.contributor.author Thomsen, M. F. pl
dc.contributor.author Retinò, A. pl
dc.contributor.author Hasegawa, H. pl
dc.contributor.author Zieger, B. pl
dc.contributor.author Lewis, G. R. pl
dc.contributor.author Coates, A. J. pl
dc.contributor.author Canu, P. pl
dc.contributor.author Dougherty, M. K. pl
dc.date.accessioned 2015-06-10T14:33:24Z
dc.date.available 2015-06-10T14:33:24Z
dc.date.issued 2013 pl
dc.identifier.issn 0741-3335 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/9270
dc.language eng pl
dc.title In situ observations of high-Mach number collisionless shocks in space plasmas pl
dc.type JournalArticle pl
dc.abstract.en Shock waves are widespread in collisionless space plasmas throughout the Universe. How particles are accelerated at these shocks has been the subject of much research attention. The dominant source of the high-energy particles that pervade our Galaxy (cosmic rays) is thought to be the high-Mach number collisionless shocks that form around young supernova remnants, but it is unclear how much the lower Mach number collisionless shock waves frequently encountered by spacecraft in Solar System space plasmas can tell us about particle acceleration in the higher Mach number regime. Here we review recent studies of the shock wave that stands in the solar wind in front of the planet Saturn (Saturn’s bow shock), based on Cassini spacecraft observations. This review represents a new direction of shock physics research, with the potential to bridge the gap between Solar System and astrophysical shocks. These studies have confirmed that Saturn’s bow shock is one of the strongest shocks in the Solar System, and a recent discovery indicates that electron acceleration at high-Mach numbers may occur irrespective of the upstream magnetic field geometry. This is important because astrophysical shocks can often only be studied remotely via emissions associated with accelerated electrons. We discuss possible future directions of this emerging sub-field of collisionless space plasma shock physics. pl
dc.description.volume 55 pl
dc.description.number 12 pl
dc.identifier.doi 10.1088/0741-3335/55/12/124035 pl
dc.identifier.eissn 1361-6587 pl
dc.title.journal Plasma Physics and Controlled Fusion pl
dc.language.container eng pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomiczne pl
dc.subtype Article pl
dc.identifier.articleid 124035 pl
dc.rights.original OTHER; inne; ostateczna wersja wydawcy; po opublikowaniu; 12; pl
.pointsMNiSW [2013 A]: 30

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