@Article{GomesRemRamSilMuñ:2019:RoCuSh,
               author = "Gomes, Tiago Francisco Pinheiro and Rempel, Erico L. and Ramos, 
                         Fernando Manoel and Silva, Suzana S. A. and Muñoz, Pablo R.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and {University of La 
                         Serena}",
                title = "Extreme value theory in the solar wind: the role of current 
                         sheets",
              journal = "Monthly Notices of the Royal Astronomical Society",
                 year = "2019",
               volume = "490",
               number = "2",
                pages = "1879--1893",
                month = "Dec.",
             keywords = "turbulence – methods: data analysis – methods: statistical – solar 
                         wind.",
             abstract = "This article provides observational evidence for the direct 
                         relation between current sheets, multifractality and fully 
                         developed turbulence in the solar wind. In order to study the role 
                         of current sheets in extreme-value statistics in the solar wind, 
                         the use of magnetic volatility is proposed. The statistical fits 
                         of extreme events are based on the peaks-over-threshold (POT) 
                         modelling of Cluster 1 magnetic field data. The results reveal 
                         that current sheets are the main factor responsible for the 
                         behaviour of the tail of the magnetic volatility distributions. In 
                         the presence of current sheets, the distributions display a 
                         positive shape parameter, which means that the distribution is 
                         unbounded in the right tail. Thus the appearance of larger current 
                         sheets is to be expected and magnetic reconnection events are more 
                         likely to occur. The volatility analysis confirms that current 
                         sheets are responsible for the \−5/3 Kolmogorov power 
                         spectra and the increase in multifractality and non-Gaussianity in 
                         solar wind statistics. In the absence of current sheets, the power 
                         spectra display a \−3/2 IroshnikovKraichnan law. The 
                         implications of these findings for the understanding of 
                         intermittent turbulence in the solar wind are discussed.",
                  doi = "10.1093/mnras/stz2668",
                  url = "http://dx.doi.org/10.1093/mnras/stz2668",
                 issn = "0035-8711 and 1365-2966",
             language = "en",
           targetfile = "gomes_extreme.pdf",
        urlaccessdate = "25 abr. 2024"
}