Detection of small magnetic flux ropes from the third and fourth Parker Solar Probe encounters - Archive ouverte HAL Access content directly
Journal Articles Astronomy and Astrophysics - A&A Year : 2021

Detection of small magnetic flux ropes from the third and fourth Parker Solar Probe encounters

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D. Telloni
  • Function : Author
Y. Chen
  • Function : Author
J. C Kasper
J. Huang
S. D Bale
K. E Korreck
  • Function : Author
A. W Case
  • Function : Author
M. Stevens
K. Goetz
R. J Macdowall
  • Function : Author
D. M Malaspina
  • Function : Author
M. Pulupa
R. Livi
P. Whittlesey
K. G Klein
  • Function : Author
N. E Raouafi
  • Function : Author

Abstract

Context. Aims. We systematically search for magnetic flux rope structures in the solar wind to within the closest distance to the Sun of ~0.13 AU, using data from the third and fourth orbits of the Parker Solar Probe. Methods. We extended our previous magnetic helicity-based technique of identifying magnetic flux rope structures. The method was improved upon to incorporate the azimuthal flow, which becomes larger as the spacecraft approaches the Sun. Results. A total of 21 and 34 magnetic flux ropes are identified during the third (21-day period) and fourth (17-day period) orbits of the Parker Solar Probe, respectively. We provide a statistical analysis of the identified structures, including their relation to the streamer belt and heliospheric current sheet crossing.
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Dates and versions

insu-03343161 , version 1 (14-09-2021)

Licence

Attribution - CC BY 4.0

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L.-L. Zhao, G. P Zank, Q. Hu, D. Telloni, Y. Chen, et al.. Detection of small magnetic flux ropes from the third and fourth Parker Solar Probe encounters. Astronomy and Astrophysics - A&A, 2021, 650, pp.A12. ⟨10.1051/0004-6361/202039298⟩. ⟨insu-03343161⟩
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