Exploring the Solar Wind from Its Source on the Corona into the Inner Heliosphere during the First Solar Orbiter–Parker Solar Probe Quadrature

Telloni, Daniele and Andretta, Vincenzo and Antonucci, Ester and Bemporad, Alessandro and Capuano, Giuseppe E. and Fineschi, Silvano and Giordano, Silvio and Habbal, Shadia and Perrone, Denise and Pinto, Rui F. and Sorriso-Valvo, Luca and Spadaro, Daniele and Susino, Roberto and Woodham, Lloyd D. and Zank, Gary P. and Romoli, Marco and Bale, Stuart D. and Kasper, Justin C. and Auchère, Frédéric and Bruno, Roberto and Capobianco, Gerardo and Case, Anthony W. and Casini, Chiara and Casti, Marta and Chioetto, Paolo and Corso, Alain J. and Da Deppo, Vania and De Leo, Yara and Dudok de Wit, Thierry and Frassati, Federica and Frassetto, Fabio and Goetz, Keith and Guglielmino, Salvo L. and Harvey, Peter R. and Heinzel, Petr and Jerse, Giovanna and Korreck, Kelly E. and Landini, Federico and Larson, Davin and Liberatore, Alessandro and Livi, Roberto and MacDowall, Robert J. and Magli, Enrico and Malaspina, David M. and Massone, Giuseppe and Messerotti, Mauro and Moses, John D. and Naletto, Giampiero and Nicolini, Gianalfredo and Nisticò, Giuseppe and Panasenco, Olga and Pancrazzi, Maurizio and Pelizzo, Maria G. and Pulupa, Marc and Reale, Fabio and Romano, Paolo and Sasso, Clementina and Schühle, Udo and Stangalini, Marco and Stevens, Michael L. and Strachan, Leonard and Straus, Thomas and Teriaca, Luca and Uslenghi, Michela and Velli, Marco and Verscharen, Daniel and Volpicelli, Cosimo A. and Whittlesey, Phyllis and Zangrilli, Luca and Zimbardo, Gaetano and Zuppella, Paola (2021) Exploring the Solar Wind from Its Source on the Corona into the Inner Heliosphere during the First Solar Orbiter–Parker Solar Probe Quadrature. The Astrophysical Journal Letters, 920 (1). L14. ISSN 2041-8205

[thumbnail of Telloni_2021_ApJL_920_L14.pdf] Text
Telloni_2021_ApJL_920_L14.pdf - Published Version
Download (1MB)

Abstract

This Letter addresses the first Solar Orbiter (SO)–Parker Solar Probe (PSP) quadrature, occurring on 2021 January 18 to investigate the evolution of solar wind from the extended corona to the inner heliosphere. Assuming ballistic propagation, the same plasma volume observed remotely in the corona at altitudes between 3.5 and 6.3 solar radii above the solar limb with the Metis coronagraph on SO can be tracked to PSP, orbiting at 0.1 au, thus allowing the local properties of the solar wind to be linked to the coronal source region from where it originated. Thanks to the close approach of PSP to the Sun and the simultaneous Metis observation of the solar corona, the flow-aligned magnetic field and the bulk kinetic energy flux density can be empirically inferred along the coronal current sheet with an unprecedented accuracy, allowing in particular estimation of the Alfvén radius at 8.7 solar radii during the time of this event. This is thus the very first study of the same solar wind plasma as it expands from the sub-Alfvénic solar corona to just above the Alfvén surface.

Item Type: Article
Subjects: EP Archives > Physics and Astronomy
Depositing User: Managing Editor
Date Deposited: 06 May 2023 06:42
Last Modified: 31 Jan 2024 04:07
URI: http://research.send4journal.com/id/eprint/2059

Actions (login required)

View Item
View Item