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Investigation of recurrent EUV jets from highly dynamic magnetic field region

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A Correction to this article was published on 24 October 2017

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Abstract

In this work, we present observations and interpretations of recurrent extreme ultraviolet (EUV) jets that occurred between 2012 July 1 21:00 UT and 2012 July 2 10:00 UT from the western edge of the NOAA active region 11513. Solar Dynamics Observatory/Atmospheric Imaging Assembly (SDO/AIA), SDO/Helioseismic and Magnetic Imager (SDO/HMI) and Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) observations have been used for the present study. Observations as well as potential-field source-surface (PFSS) extrapolation suggest an open field configuration in the vicinity of the jet activity area. 18 EUV jets were observed from the western edge of the active region along the open field channel. All the jet events appeared to be non-homologous and show different morphological properties and evolution. Some of the jets were small and narrow in size while the others were huge and wide. The average speed of these jets ranges from \({\sim}47\mbox{ to }{\sim}308~\mbox{km}\,\mbox{s}^{-1}\). SDO/AIA 171 Å intensity profiles at the base of these jets show bumps corresponding to each jet, which is an evidence of recurrent magnetic reconnections. The magnetic field observation at the foot points of the jets revealed a very complex and dynamic magnetic activity which includes flux emergence, flux cancellation, dynamic motions, merging, separation, etc. We suggest that the recurrent jets are the result of recurrent magnetic reconnections among the various emerging bipolar fields themselves as well as with the open fields.

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  • 24 October 2017

    Correction to: Astrophys Space Sci (2017) 362:10 DOI 10.1007/s10509-016-2983-x

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Acknowledgements

We thank SDO/(AIA & HMI) teams for providing their data for the present study. This work was supported by the BK21 plus program through the National Research Foundation (NRF) funded by the Ministry of Education of Korea. N.C.J. thanks the School of Space Research, Kyung Hee University for providing him a Postdoctoral grant. The work of R.C., W.U., and I.Zh. was supported by the Department of Science & Technology, Government of India Fund and the Bulgarian Science Fund under Indo-Bulgarian bilateral project /Int/Bulgaria/P-2/12, DNTS/INDIA 01/7. Y.G. is supported by NSFC 11203014 and 11533005. We are indebted to the referee for his/her helpful comments and suggestions.

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Correspondence to Navin Chandra Joshi.

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A correction to this article is available online at https://doi.org/10.1007/s10509-017-3192-y.

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Joshi, N.C., Chandra, R., Guo, Y. et al. Investigation of recurrent EUV jets from highly dynamic magnetic field region. Astrophys Space Sci 362, 10 (2017). https://doi.org/10.1007/s10509-016-2983-x

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