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  Connecting Solar Orbiter remote-sensing observations and Parker Solar Probe in situ measurements with a numerical MHD reconstruction of the Parker spiral

Biondo, R., Bemporad, A., Pagano, P., Telloni, D., Reale, F., Romoli, M., et al. (2022). Connecting Solar Orbiter remote-sensing observations and Parker Solar Probe in situ measurements with a numerical MHD reconstruction of the Parker spiral. Astronomy and Astrophysics, 668, A144. doi:10.1051/0004-6361/202244535.

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Biondo, Ruggero, Author
Bemporad, Alessandro, Author
Pagano, Paolo, Author
Telloni, Daniele, Author
Reale, Fabio, Author
Romoli, Marco, Author
Andretta, Vincenzo, Author
Antonucci, Ester, Author
Da Deppo, Vania, Author
De Leo, Yara1, 2, Author           
Fineschi, Silvano, Author
Heinzel, Petr3, Author           
Moses, Daniel, Author
Naletto, Giampiero, Author
Nicolini, Gianalfredo, Author
Spadaro, Daniele, Author
Stangalini, Marco, Author
Teriaca, Luca2, Author           
Landini, Federico, Author
Sasso, Clementina4, Author           
Susino, Roberto, AuthorJerse, Giovanna, AuthorUslenghi, Michela, AuthorPancrazzi, Maurizio, Author more..
Affiliations:
1IMPRS for Solar System Science at the University of Göttingen, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832290              
2Department Sun and Heliosphere, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832289              
3Stellar Astrophysics, MPI for Astrophysics, Max Planck Society, ou_159882              
4IMPRS on Physical Processes in the Solar System and Beyond, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832290              

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Free keywords: magnetohydrodynamics (MHD); methods: numerical; solar wind; Sun: heliosphere; Sun: corona; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics
 Abstract: As a key feature, NASA's Parker Solar Probe (PSP) and ESA-NASA's Solar Orbiter (SO) missions cooperate to trace solar wind and transients from their sources on the Sun to the inner interplanetary space. The goal of this work is to accurately reconstruct the interplanetary Parker spiral and the connection between coronal features observed remotely by the Metis coronagraph on-board SO and those detected in situ by PSP at the time of the first PSP-SO quadrature of January 2021. We use the Reverse in situ and MHD Approach (RIMAP), a hybrid analytical-numerical method performing data-driven reconstructions of the Parker spiral. RIMAP solves the MHD equations on the equatorial plane with the PLUTO code, using the measurements collected by PSP between 0.1 and 0.2 AU as boundary conditions. Our reconstruction connects density and wind speed measurements provided by Metis (3-6 solar radii) to those acquired by PSP (21.5 solar radii) along a single streamline. The capability of our MHD model to connect the inner corona observed by Metis and the super Alfvénic wind measured by PSP, not only confirms the research pathways provided by multi-spacecraft observations, but also the validity and accuracy of RIMAP reconstructions as a possible test bench to verify models of transient phenomena propagating across the heliosphere, such as coronal mass ejections, solar energetic particles and solar wind switchbacks.

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 Dates: 2022
 Publication Status: Issued
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 Rev. Type: -
 Identifiers: DOI: 10.1051/0004-6361/202244535
ISSN: 0004-6361
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Title: Astronomy and Astrophysics
Source Genre: Journal
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Pages: - Volume / Issue: 668 Sequence Number: - Start / End Page: A144 Identifier: -