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The spectral observation of decimetric spikes with very high spectral resolution

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Abstract

Thousands of decimetric spikes were observed with a new spectrometer of Yunnan Observatory on June 24, 2001. The statistical analyses of the bandwidth, polarization degree, and half power duration of these spikes were made. We found that the absolute bandwidth of the spikes is down to the low limit of the instrument’s spectral resolution (about 1.4 MHz). 76% of the total spikes have the polarization degree greater than 70%. The distribution of the half power durations concentrates on less than 16 milliseconds. These results support the interpretation of the electron cyclotron maser (ECM) mechanism for the decimetric spikes.

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References

  1. Slottje, C., Millisecond microwave spikes in solar microwave flares, Nature, 1978, 275: 520–524.

    Article  Google Scholar 

  2. Jin, S. Z., Zhao, R. Y., Fu, Q. J., Solar microwave bursts recorded at 2.84 GHz with millisecond time resolution, Solar Physics, 1986, 104: 391–413.

    Article  Google Scholar 

  3. St ä hli, M., Magun, A., The microwave spectrum of solar millisecond spike, Solar Physics, 1986, 104: 117–123.

    Article  Google Scholar 

  4. Benz, A. O., Millisecond radio spikes, Solar Physics, 1986, 104: 99–110.

    Article  Google Scholar 

  5. Perrenoud, M. R., The computer-controlled solar radio spectrometer IKARUS, Solar Physics, 1982, 97: 97–106.

    Google Scholar 

  6. Benz, A. O., Güdel, M., Isliker, H. et al., A broadband spectrometer for decimetric and microwave radio bursts: first results, Solar Physics, 1991, 133: 385–393.

    Article  Google Scholar 

  7. Csillaghy, A., Benz, A. O., The bandwidth of millisecond radio spikes in solar flares, Astron. Astrophys., 1993, 274: 487–496.

    Google Scholar 

  8. Messmer, P., Benz, A. O., The minimum bandwidth of narrowband spikes in solar flare decimetric radio waves, Astron. Astrophys., 2000, 354: 287–295.

    Google Scholar 

  9. Benz, A. O., Plasma Astrophysics — Kinetic processes in solar and stellar coronae, Dordrecht: Kluwer Academic Publishers, 1993.

    Google Scholar 

  10. Kundu, R., Vlahos, L., Solar microwave bursts: a review, Space Sci. Rev., 1982, 32: 405–421.

    Article  Google Scholar 

  11. Güdel, A., Zlobec, P., Polarization and emission mode of solar radio spikes, Astron. Astrophys., 1991, 245: 299–309.

    Google Scholar 

  12. Wang, M., Fu, Q. J., Xie, R. X. et al., Observational characteristics of weak polarized microwave spikes, Solar Physics, 1999, 189: 331–344.

    Article  Google Scholar 

  13. Winglee, R. M., Dulk, G. A., Electron-cyclotron maser emission from the Sun and stars: variations with plasma temperature and density, Solar Physics, 1986, 104: 93–97.

    Article  Google Scholar 

  14. Güdel, A., Benz, A. O., Time profiles of solar radio spikes, Astron. Astrophys., 1990, 231: 201–212.

    Google Scholar 

Download references

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Authors and Affiliations

  1. Yunnan Observatory, National Astronomical Observatories, Chinese Academy of Sciences, 650011, Kunming, China

    Wang Min, Duan Changchun, Xie Ruixiang & Xia Zhiguo

  2. National Astronomical Observatories, Chinese Academy of Sciences, 100012, Beijing, China

    Yan Yihua

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  1. Wang Min
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  2. Duan Changchun
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  3. Xie Ruixiang
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  4. Xia Zhiguo
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  5. Yan Yihua
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Correspondence to Wang Min.

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Wang, M., Duan, C., Xie, R. et al. The spectral observation of decimetric spikes with very high spectral resolution. Sci. China Ser. A-Math. 45 (Suppl 1), 106–113 (2002). https://doi.org/10.1007/BF02889691

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  • DOI: https://doi.org/10.1007/BF02889691

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