@InProceedings{SawantSyKaFeAnKaMe:2004:HiFrDe,
               author = "Sawant, Hanumant Shankar and Sych, R. A. and Kane, S. R. and 
                         Fernandes, Francisco Carlos Rocha and Andrade, Maria 
                         Concei{\c{c}}{\~a}o de and Karlicky, M. and Meszarosova, H.",
          affiliation = "Space Sciences Laboratory, University of California, Berkeley, USA 
                         and Ondrejov Observatory, Ondrejov, Czech Republic",
                title = "High frequency decimetric pulsations and associated hard x-ray 
                         emission in the 5 august 2003 (1249 UT) flare",
            booktitle = "Proceedings...",
                 year = "2004",
         organization = "COSPAR Scientific Assembly, 35.",
            publisher = "INPE",
             abstract = "The flare on 5 August 2003 (1243-1251 UT) was observed at a 
                         variety of wavelengths. The H-alpha flare (importance SN) was 
                         located at S16, E33 in the active region NOAA 10424. The soft 
                         X-ray flare observed by GOES has been classified as M1.7. The 
                         spatial and spectral characteristics of the hard X-ray source were 
                         observed by the imaging spectrometer on the RHESSI satellite. In 
                         addition, white light observations at 1600Å and EUV observations 
                         at 171Å (TRACE) and 195Å (EIT) are also available. Ondrejov and 
                         BSS radio spectroscopes, operating in the frequency ranges of 
                         800-2000 MHz and 1750 - 2200 MHz respectively, observed four 
                         groups of dm pulsations which covered the entire frequency range 
                         and lasted for 30 to 50 sec. Wavelet and Fourier analysis have 
                         shown that these groups of pulsations are composed of broad band 
                         0.5 GHz subsecond pulses and narrow band 0.12 MHz millisecond 
                         spikes. Periodicity of these groups of pulsations is about 4 sec 
                         and with 2 and 3 harmonics. The periodicity of the broad band 
                         component is also same. Early in the flare RHESSI observed a 
                         double hard X-ray source which later developed into a single 
                         source. The fluctuations in the hard X-ray emission are similar to 
                         those at decimetric wavelengths. Big and small loops are seen in 
                         TRACE data and their foot points are nearly coincident with the 
                         appropriate polarity of magnetic field as seen from MDI maps of 
                         the associated active region. An analysis of these 
                         multi-wavelength observations of the 5 August 2003 flare will be 
                         presented and their implications regarding the acceleration and 
                         escape of energetic electrons will be briefly discussed.",
  conference-location = "Par{\'{\i}}s",
      conference-year = "18-25 July",
             language = "en",
                  ibi = "6qtX3pFwXQZsFDuKxG/Fcswx",
                  url = "http://urlib.net/ibi/6qtX3pFwXQZsFDuKxG/Fcswx",
        urlaccessdate = "21 maio 2024"
}