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Quasi-coherent chorus properties: 1. Implications for wave-particle interactions

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    0367435 - UFA-U 2012 RIV US eng J - Článek v odborném periodiku
    Tsurutani, B. T. - Falkowski, B. J. - Verkhoglyadova, O. P. - Pickett, J. S. - Santolík, Ondřej - Lakhina, D. G.
    Quasi-coherent chorus properties: 1. Implications for wave-particle interactions.
    Journal of Geophysical Research. Roč. 116, - (2011), A09210/1-A09210/18 ISSN 0148-0227
    Grant CEP: GA ČR GAP205/10/2279; GA MŠk(CZ) ME10001
    Výzkumný záměr: CEZ:AV0Z30420517
    Klíčová slova: WHISTLER-MODE CHORUS * RELATIVISTIC ELECTRON MICROBURSTS * PITCH ANGLE SCATTERING * RADIATION BELT * AURORAL-ZONE * RESONANT DIFFUSION * MAGNETIC STORMS * GENDRIN MODE * VLF WAVES * MAGNETOSPHERE
    Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
    Impakt faktor: 3.021, rok: 2011
    http://www.agu.org/pubs/crossref/2011/2010JA016237.shtml

    A study of dayside ELF/VLF electromagnetic (EM) waves from L* = 2 to 9 and magnetic local time (MLT) from 09 to 15 was conducted using plasma wave data from the Polar spacecraft. EM waves were detected from L* = 4 to 9 from 09 to 12 MLT with a decrease in the afternoon sector (12 to 15 MLT). Some of the chorus was clearly related to generation by substorm injected similar to 5 to 100 keV electrons drifting from the midnight sector to the local noon sector. However, dayside chorus also showed two solar wind ram pressure dependences: increased (above average) pressures and unusually low pressures. Possible chorus generation mechanisms are discussed. Chorus detected by Polar away from the magnetic equator generation region (similar to 25 degrees to 55 degrees magnetic latitude) was substantially different than chorus detected in previous studies within the similar to 0 degrees to 10 degrees generation region.
    Trvalý link: http://hdl.handle.net/11104/0202131
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