Solar Wind Origins and Connection Science (IS/RS)

Leads:

Naïs Fargette, Imperial College London, UK

Pete Riley, Predictive Science Inc., USA

Yeimy Rivera, Center for Astrophysics, Havard, USA

Alexis Rouillard, Institut de Recherche en Astrophysique et Planétologie, France

Nicholeen Viall, NASA Goddard Space Flight Center, USA

Objectives:

(1) What is the source location of the solar wind? We will address this objective through:

• Studies of candidate solar wind source regions with imagers and spectrometers in a) coronal holes, b) coronal hole/quiet sun boundaries, and c) coronal hole/active region boundaries.

• Linking low coronal source to high corona and young solar wind with imagers.

• Linking remote measurements of FIP with in situ measurements of FIP using predictive/empirical models driven by input from photospheric magnetic field measurements.

• Scientific exploitation of models and techniques developed to connect in-situ to remote-sensing data (e.g. developed by MADAWG for operations and data exploitation)

• Theory and simulations – from the solar atmosphere to the solar wind

(2) How is the solar wind released (i.e. is reconnection involved, and if so, what type?). We will address this objective through:

• Spectroscopic measurements of FIP and mass-dependencies as a function of closed and open magnetic fields.

• Linking to in situ measurements of FIP and mass-dependencies using predictive/empirical models driven by input from photospheric magnetic field measurements.

• Linking to the type of reconnection expected from dynamics at magnetic open-closed boundary, using first principles simulations of the solar wind.

(3) How is the solar wind accelerated?

• Linking low coronal flows to high corona and young solar wind with imagers, spectral line profiles and species-dependent energization.

• Charge state modeling of in-situ frozen in charge states linked with spectroscopic measurements of charge states in the corona and in situ-measurements of charge states

We expect there will be opportunities to address all three objectives with coordinated ground based observations e.g. DKIST and UCOMP.

When you sign up to this group, please send a short e-mail to the working group organisers with your interests and expectations.

Google group: solo_wg_sw_origins_connection