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Piecewise mass flows within a solar prominence observed by the New Vacuum Solar Telescope

  • Hongbo Li
  • Yu Liu
  • Kuan Vai Tam
  • Mingyu Zhao
  • Xuefei Zhang
Original Article

Abstract

The material of solar prominences is often observed in a state of flowing. These mass flows (MF) are important and useful for us to understand the internal structure and dynamics of prominences. In this paper, we present a high resolution H\(\alpha \) observation of MFs within a quiescent solar prominence. From the observation, we find that the plasma primarily has a circular motion and a downward motion separately in the middle section and legs of the prominence, which creates a piecewise mass flow along the observed prominence. Moreover, the observation also shows a clear displacement of MF’s velocity peaks in the middle section of the prominence. All of these provide us with a detailed record of MFs within a solar prominence and show a new approach to detecting the physical properties of prominence.

Keywords

Sun: activity Sun: filaments, prominences Sun: magnetic fields 

Notes

Acknowledgements

The authors are deeply indebted the anonymous referee for his/her constructive advices and corrections. We are grateful for the observation provided by the NVST. We also thank Dr. K. Ji and J. Su for their help. This work is supported by Grants from National Scientific Foundation of China (NSFC 11533009, 11603074, 11503084, 11773068) and from the Key Laboratory of Geospace Environment, CAS, University of Science & Technology of China. K.V.T. is supported by Macao Science and Technology Development Fund (FDCT-16-003-SSI). This work is also supported by the grant associated with project of the Group for Innovation of Yunnan Province. Finally, we are also grateful to the One belt and One road project of the West Light Foundation, CAS.

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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Yunnan ObservatoriesChinese Academy of SciencesKunmingChina
  2. 2.Key Laboratory of Geospace Environment, Chinese Academy of SciencesUniversity of Science & Technology of ChinaHefeiChina
  3. 3.University of Chinese Academy of SciencesBeijingChina
  4. 4.Space Science InstituteMacau University of Science and TechnologyMacauChina

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