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dc.contributor.authorYu, S.
dc.contributor.authorDoyle, J.G.
dc.contributor.authorHallinan, G.
dc.contributor.authorMacKinnon, A.L.
dc.date.accessioned2018-09-20T16:28:52Z
dc.date.available2018-09-20T16:28:52Z
dc.date.issued2011-01-01
dc.identifier.citationYu, S. Doyle, J.G.; Hallinan, G.; MacKinnon, A.L. (2011). Mapping radio emitting-region on low-mass stars and brown dwarfs. EPJ Web of Conferences 16 ,
dc.identifier.issn2100-014X
dc.identifier.urihttp://hdl.handle.net/10379/14498
dc.description.abstractStrong magnetic activity in ultracool dwarfs (UCDs, spectral classes later than M7) have emerged from a number of radio observations, including the periodic beams. The highly (up to 100%) circularly polarized nature of the emission point to an effective amplification mechanism of the high-frequency electromagnetic waves - the electron cyclotron maser (ECM) instability. Several anisotropic velocity distibution models of electrons, including the horseshoe distribution, ring shell distribution and the loss-cone distribution, are able to generate the ECM instability. A magnetic-field-aligned electric potential would play an significant role in the ECM process. We are developing a theoretical model in order to simulate ECM and apply this model to map the radio-emitting region on low-mass stars and brown dwarfs.
dc.publisherEDP Sciences
dc.relation.ispartofEPJ Web of Conferences
dc.subjectelectron-cyclotron maser
dc.subjectauroral kilometric radiation
dc.subjectultracool dwarf
dc.subjectinstability
dc.subjectemission
dc.subjectdriven
dc.titleMapping radio emitting-region on low-mass stars and brown dwarfs
dc.typeArticle
dc.identifier.doi10.1051/epjconf/20111606013
dc.local.publishedsourcehttp://www.epj-conferences.org/articles/epjconf/pdf/2011/06/epjconf_bdep2009_06013.pdf
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