Evolution of Solar Wind Turbulence from 0.1 to 1 au during the First Parker Solar Probe–Solar Orbiter Radial Alignment

Telloni, Daniele and Sorriso-Valvo, Luca and Woodham, Lloyd D. and Panasenco, Olga and Velli, Marco and Carbone, Francesco and Zank, Gary P. and Bruno, Roberto and Perrone, Denise and Nakanotani, Masaru and Shi, Chen and D’Amicis, Raffaella and De Marco, Rossana and Jagarlamudi, Vamsee K. and Steinvall, Konrad and Marino, Raffaele and Adhikari, Laxman and Zhao, Lingling and Liang, Haoming and Tenerani, Anna and Laker, Ronan and Horbury, Timothy S. and Bale, Stuart D. and Pulupa, Marc and Malaspina, David M. and MacDowall, Robert J. and Goetz, Keith and de Wit, Thierry Dudok and Harvey, Peter R. and Kasper, Justin C. and Korreck, Kelly E. and Larson, Davin and Case, Anthony W. and Stevens, Michael L. and Whittlesey, Phyllis and Livi, Roberto and Owen, Christopher J. and Livi, Stefano and Louarn, Philippe and Antonucci, Ester and Romoli, Marco and O’Brien, Helen and Evans, Vincent and Angelini, Virginia (2021) Evolution of Solar Wind Turbulence from 0.1 to 1 au during the First Parker Solar Probe–Solar Orbiter Radial Alignment. The Astrophysical Journal Letters, 912 (2). L21. ISSN 2041-8205

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Abstract

The first radial alignment between Parker Solar Probe and Solar Orbiter spacecraft is used to investigate the evolution of solar wind turbulence in the inner heliosphere. Assuming ballistic propagation, two 1.5 hr intervals are tentatively identified as providing measurements of the same plasma parcels traveling from 0.1 to 1 au. Using magnetic field measurements from both spacecraft, the properties of turbulence in the two intervals are assessed. Magnetic spectral density, flatness, and high-order moment scaling laws are calculated. The Hilbert–Huang transform is additionally used to mitigate short sample and poor stationarity effects. Results show that the plasma evolves from a highly Alfvénic, less-developed turbulence state near the Sun, to fully developed and intermittent turbulence at 1 au. These observations provide strong evidence for the radial evolution of solar wind turbulence.

Item Type: Article
Subjects: Open Research Librarians > Physics and Astronomy
Depositing User: Unnamed user with email support@open.researchlibrarians.com
Date Deposited: 13 May 2023 08:06
Last Modified: 05 Feb 2024 04:51
URI: http://stm.e4journal.com/id/eprint/914

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