@Article{Kane:2003:Fl~27,
               author = "Kane, Rajaram Purushotam",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Fluctuations in the ~ 27-day sequences in the solar index F10 
                         during solar cycles 22-23",
              journal = "Journal of Atmospheric and Solar-Terrestrial Physics",
                 year = "2003",
               volume = "65",
               number = "10",
                pages = "1169--1174",
                month = "July",
             keywords = "solar radio emission, 2800 MHz solar flux, 27-day periodicity, 
                         solar cycle 22, solar cycle 23, time-series, radio emissions, 
                         periodicities, rotation, irradiance, flux, uv.",
             abstract = "A study of the daily values of the 10.7 cm (2800 MHz, F 10) solar 
                         radio flux revealed fluctuations with peak spacings in a very wide 
                         range (~ 13-40 days). There can be multiple reasons for such a 
                         wide range. Amongst these, there is a possibility that the 
                         dominant radiance within an active region may move rapidly forward 
                         or backward with respect to the solar surface, to give spacings 
                         different from ~ 27 days (solar rotation period). This needs to be 
                         checked with an actual image analysis. An earlier conclusion by 
                         Pap et al. (Solar Phys. (1990) 165) that 27-day solar rotation is 
                         more pronounced in the declining phase of a solar cycle, seems to 
                         be true for cycles 22-23 also. However, during any year, the 
                         magnitudes of the 27-day oscillation can vary by more than a 
                         factor of two from one oscillation to another.",
           copyholder = "SID/SCD",
                  doi = "10.1016/S1364-6826(03)00167-6",
                  url = "http://dx.doi.org/10.1016/S1364-6826(03)00167-6",
                 issn = "1364-6826",
             language = "en",
           targetfile = "1-s2.0-S1364682603001676-main.pdf",
        urlaccessdate = "09 maio 2024"
}