caa a22 4500 445347341 CHVBK 20180317142833.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s11207-011-9756-z doi (NATIONALLICENCE)springer-10.1007/s11207-011-9756-z Millisecond Radio Spikes in the Decimetric Band [Elektronische Daten] [B. Da̧browski, P. Rudawy, M. Karlický] We present the results of the analysis of thirteen events consisting of dm-spikes observed in Toruń between 15 March 2000 and 30 October 2001. The events were obtained with a very high time resolution (80 microseconds) radio spectrograph in the 1352 - 1490MHz range. These data were complemented with observations from the radio spectrograph at Ondřejov in the 0.8 - 2.0GHz band. We evaluated the basic characteristics of the individual spikes (duration, spectral width, and frequency drifts), as well as their groups and chains, the location of their emission sources, and the temporal correlations of the emissions with various phases of the associated solar flares. We found that the mean duration and spectral width of the radio spikes are equal to 0.036s and 9.96MHz, respectively. Distributions of the duration and spectral widths of the spikes have positive skewness for all investigated events. Each spike shows positive or negative frequency drift. The mean negative and positive drifts of the investigated spikes are equal to −776MHz s−1 and 1608MHz s−1, respectively. The emission sources of the dm-spikes are located mainly at disk center. We have noticed two kinds of chains, with and without frequency drifts. The mean durations of the chains vary between 0.067s and 0.509s, while their spectral widths vary between 7.2MHz and 17.25MHz. The mean duration of an individual spike observed in a chain was equal to 0.03s. While we found some agreement between the global characteristics of the groups of spikes recorded with the two instruments located in Toruń and Ondřejov, we did not find any one-to-one relation between individual spikes. Springer Science+Business Media B.V., 2011 Solar corona nationallicence Flares nationallicence Radio bursts nationallicence Da̧browski B. Astronomical Institute, Academy of Sciences of the Czech Republic, 251 65, Ondřejov, Czech Republic aut Rudawy P. Astronomical Institute, University of Wrocław, ul. Kopernika 11, 51-622, Wrocław, Poland aut Karlický M. Astronomical Institute, Academy of Sciences of the Czech Republic, 251 65, Ondřejov, Czech Republic aut Solar Physics Springer Netherlands 273/2(2011-11-01), 377-392 0038-0938 273:2<377 2011 273 11207 https://doi.org/10.1007/s11207-011-9756-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11207-011-9756-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Da̧browski B. Astronomical Institute, Academy of Sciences of the Czech Republic, 251 65, Ondřejov, Czech Republic aut NATIONALLICENCE 700 1- Rudawy P. Astronomical Institute, University of Wrocław, ul. Kopernika 11, 51-622, Wrocław, Poland aut NATIONALLICENCE 700 1- Karlický M. Astronomical Institute, Academy of Sciences of the Czech Republic, 251 65, Ondřejov, Czech Republic aut NATIONALLICENCE 773 0- Solar Physics Springer Netherlands 273/2(2011-11-01), 377-392 0038-0938 273:2<377 2011 273 11207 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer