@Article{Echer:2009:FoMaWa,
               author = "Echer, Ezequiel",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Foreshock and magnetosheath waves at Uranus and Neptune studied 
                         with wavelet analysis",
              journal = "Advances in Space Research",
                 year = "2009",
               volume = "44",
               number = "9",
                pages = "1030--1037",
                month = "Nov.",
             keywords = "Foreshock waves, Magnetosheath waves, Uranus magnetosphere, 
                         Neptune magnetosphere, Solar wind, Wavelet analysis.",
             abstract = "Foreshock and magnetosheath waves in Uranus and Neptune 
                         magnetospheres are studied in this work with wavelet analysis. In 
                         order to conduct this study, Voyager-2 magnetometer 3-s averaged 
                         data are used. The Morlet wavelet transform is applied to the 
                         magnetic field vector data. Waves present in the magnetosheath and 
                         foreshock regions are highly non-stationary, showing large 
                         amplitude variations. It was found that the dominant periods of 
                         these waves are longer than the H+ cyclotron period. Overall, high 
                         frequency waves are seen near the bow shock crossing and low 
                         frequency oscillations near the magnetopause crossing. It can be 
                         concluded that non-stationary foreshock and magnetosheath 
                         planetary waves can be well characterized with wavelet analysis.",
                  doi = "10.1016/j.asr.2009.05.024",
                  url = "http://dx.doi.org/10.1016/j.asr.2009.05.024",
                 issn = "0273-1177",
             language = "en",
           targetfile = "foreshock.pdf",
        urlaccessdate = "20 maio 2024"
}