Notice:
|
Detection of small magnetic flux ropes from the third and fourth Parker Solar Probe encounters
Author | Zhao, L.; Zank, G.; Hu, Q.; Telloni, D.; Chen, Y.; Adhikari, L.; Nakanotani, M.; Kasper, J.; Huang, J.; Bale, S.; Korreck, K.; Case, A.; Stevens, M.; Bonnell, J.; de Wit, Dudok; Goetz, K.; Harvey, P.; MacDowall, R.; Malaspina, D.; Pulupa, M.; Larson, D.; Livi, R.; Whittlesey, P.; Klein, K.; Raouafi, N.; |
Keywords | Solar wind; Sun: magnetic fields; turbulence; methods: observational; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics; Parker Data Used |
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. |
Year of Publication | 2021 |
Journal | Astronomy and Astrophysics |
Volume | 650 |
Number of Pages | A12 |
Section | |
Date Published | 06/2021 |
ISBN | |
URL | https://ui.adsabs.harvard.edu/abs/2021A&A...650A..12Z |
DOI | 10.1051/0004-6361/202039298 |