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Journal Articles The Astrophysical Journal Supplement Series Year : 2023

Slow Solar Wind Connection Science during Solar Orbiter’s First Close Perihelion Passage

Christopher Owen
David Long
Deborah Baker
David Brooks
Vanessa Polito
Lucie Green
Sarah Matthews
Mathew Owens
Mike Lockwood
David Stansby
Alexander James
Gherardo Valori
Alessandra Giunta
  • Function : Author
Miho Janvier
Nawin Ngampoopun
Teodora Mihailescu
Andy To
Lidia van Driel-Gesztelyi
Pascal Démoulin
Raffaella D’amicis
Ryan French
Gabriel Suen
Alexis Rouillard
Rui Pinto
Victor Réville
Christopher Watson
  • Function : Author
Andrew Walsh
Anik de Groof
  • Function : Author
David Williams
Ioannis Zouganelis
Daniel Müller
David Berghmans
Frédéric Auchère
Louise Harra
Udo Schuehle
Krysztof Barczynski
Éric Buchlin
Regina Aznar Cuadrado
Emil Kraaikamp
Sudip Mandal
  • Function : Author
Susanna Parenti
Hardi Peter
Luciano Rodriguez
Conrad Schwanitz
Phil Smith
  • Function : Author
Luca Teriaca
Cis Verbeeck
Andrei Zhukov
Bart de Pontieu
Tim Horbury
Sami Solanki
Jose Carlos del Toro Iniesta
Joachim Woch
  • Function : Author
Achim Gandorfer
Johann Hirzberger
  • Function : Author
David Orozco Súarez
Thierry Appourchaux
Daniele Calchetti
Jonas Sinjan
Fatima Kahil
Kinga Albert
Reiner Volkmer
  • Function : Author
Mats Carlsson
Andrzej Fludra
Don Hassler
Martin Caldwell
  • Function : Author
Terje Fredvik
Tim Grundy
  • Function : Author
Steve Guest
  • Function : Author
Margit Haberreiter
Sarah Leeks
  • Function : Author
Gabriel Pelouze
Joseph Plowman
Werner Schmutz
Sunil Sidher
  • Function : Author
William Thompson
Philippe Louarn
Andrei Federov


Abstract The Slow Solar Wind Connection Solar Orbiter Observing Plan (Slow Wind SOOP) was developed to utilize the extensive suite of remote-sensing and in situ instruments on board the ESA/NASA Solar Orbiter mission to answer significant outstanding questions regarding the origin and formation of the slow solar wind. The Slow Wind SOOP was designed to link remote-sensing and in situ measurements of slow wind originating at open–closed magnetic field boundaries. The SOOP ran just prior to Solar Orbiter’s first close perihelion passage during two remote-sensing windows (RSW1 and RSW2) between 2022 March 3–6 and 2022 March 17–22, while Solar Orbiter was at respective heliocentric distances of 0.55–0.51 and 0.38–0.34 au from the Sun. Coordinated observation campaigns were also conducted by Hinode and IRIS. The magnetic connectivity tool was used, along with low-latency in situ data and full-disk remote-sensing observations, to guide the target pointing of Solar Orbiter. Solar Orbiter targeted an active region complex during RSW1, the boundary of a coronal hole, and the periphery of a decayed active region during RSW2. Postobservation analysis using the magnetic connectivity tool, along with in situ measurements from MAG and SWA/PAS, showed that slow solar wind originating from two out of three of the target regions arrived at the spacecraft with velocities between ∼210 and 600 km s −1 . The Slow Wind SOOP, despite presenting many challenges, was very successful, providing a blueprint for planning future observation campaigns that rely on the magnetic connectivity of Solar Orbiter.
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Dates and versions

obspm-04220143 , version 1 (04-04-2024)





Stephanie Yardley, Christopher Owen, David Long, Deborah Baker, David Brooks, et al.. Slow Solar Wind Connection Science during Solar Orbiter’s First Close Perihelion Passage. The Astrophysical Journal Supplement Series, 2023, 267 (1), pp.11. ⟨10.3847/1538-4365/acd24b⟩. ⟨obspm-04220143⟩
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