The fast component of the solar wind: origins, correlations and modeling with EUHFORIA
- 1Centre for mathematical Plasma Astrophysics (CmPA), KU Leuven, Leuven, Belgium (evangelia.samara@kuleuven.be)
- 2Solar-Terrestrial Centre of Excellence – SIDC, Royal Observatory of Belgium, Brussels, Belgium
- 3Institute of Physics, University of Maria Curie-Skłodowska, Lublin, Poland
- 4Research Center for Astronomy and Applied Mathematics, Academy of Athens, Athens, Greece
- 5IRAP, Université de Toulouse, CNRS, UPS, CNES, Toulouse, France
- 6LDE3, CEA Saclay, Université Paris-Saclay, Gif-sur-Yvette, France
- 7NASA Goddard Space Flight Center, Greenbelt, MD, USA
- 8Max-Planck-Institut for Solar System Research, Gottingen, Germany
- 9Leibniz-Institut for Astrophysics Potsdam (AIP), Potsdam, Germany
It is widely known that the fast solar wind originates mainly from coronal holes (CHs) in the solar corona. Associations between the CH characteristics and the properties of the fast solar wind in situ have been studied throughout the years from different authors leading to diverse degrees of correlation (Nolte et al. 1976; Vršnak et al. 2007; Karachik et al. 2011; Rotter et al. 2012a; Hofmeister et al. 2018; Heinemann et al. 2020). In this work, we introduce and quantify the geometrical complexity of CHs, a parameter that has been neglected so far in similar studies. For a particular CH sample, we explore how complexity affects the peak speed of the fast solar wind at Earth and its association with other CH properties. We further compare observations of fast solar wind at Earth with forecasts from EUHFORIA. We evaluate our results, and present the efforts and restrictions we encounter towards improving our prediction capabilities by exploiting recent PSP observations.
How to cite: Samara, E., Magdalenic, J., Rodriguez, L., Poedts, S., Georgoulis, M. K., Pinto, R. F., Arge, C. N., Heinemann, S. G., and Hofmeister, S. J.: The fast component of the solar wind: origins, correlations and modeling with EUHFORIA, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-9486, https://doi.org/10.5194/egusphere-egu23-9486, 2023.
