000007700 001__ 7700
000007700 005__ 20260105155453.0
000007700 0247_ $$2DOI$$a 10.3847/2041-8213/ae10a3
000007700 037__ $$aSCART-2026-0008
000007700 100__ $$aChitta, L. P. 
000007700 245__ $$aSupergranulation and Poleward Migration of the Magnetic Field at High Latitudes of the Sun
000007700 260__ $$c2025
000007700 520__ $$aMagnetoconvection at the solar surface governs the dynamics in the upper solar atmosphere and sustains the heliosphere. Properties of this fundamental process are poorly described near the solar poles. Here we report the first out-of-ecliptic remote-sensing observations of the south pole of the Sun from a high-latitude campaign of the Solar Orbiter spacecraft, which reveal spatial and temporal evolution of supergranular convective cells. The supergranular cells have spatial scales of 20–40 Mm. From 8 days of observations starting on 2025 March 16, our analysis shows that the magnetic network migrates poleward, on average, at high latitudes (above 60°), with speeds in the range of 10–20 m s−1, depending on the structures being tracked. These results shed light on the buildup of the polar magnetic field that is central to our understanding of the solar cycle and the heliospheric magnetic field.
000007700 594__ $$aSTCE
000007700 6531_ $$aSolar Orbiter
000007700 6531_ $$aEUI
000007700 6531_ $$aPHI
000007700 6531_ $$ahigh latitude
000007700 700__ $$aCalchetti, D.
000007700 700__ $$aHirzberger, J.
000007700 700__ $$aValori, G.
000007700 700__ $$aPriest, E. R. 
000007700 700__ $$aSolanki, S. K.
000007700 700__ $$aBerghmans, D.
000007700 700__ $$aVerbeeck, C. 
000007700 700__ $$aKraaikamp, E. 
000007700 700__ $$aAlbert, K.
000007700 700__ $$aAppourchaux, T.
000007700 700__ $$aBailén, F. J. 
000007700 700__ $$aBellot Rubio, L. R.
000007700 700__ $$aBlanco Rodríguez, J.
000007700 700__ $$aFeller, A.
000007700 700__ $$aGandorfer, A. 
000007700 700__ $$aGizon, L. 
000007700 700__ $$aLagg, A.
000007700 700__ $$aMoreno Vacas, A. 
000007700 700__ $$aOrozco Suárez, D. 
000007700 700__ $$aSchou, J.
000007700 700__ $$aSchühle, U. 
000007700 700__ $$aSinjan, J. 
000007700 700__ $$aStrecker, H.
000007700 700__ $$aVolkmer, R. 
000007700 700__ $$aWoch, J.  
000007700 700__ $$aLi, X. 
000007700 700__ $$aOba, T. 
000007700 700__ $$aUlyanov, A.  
000007700 773__ $$n2, id.L45$$pThe Astrophysical Journal Letters$$v993$$y2025
000007700 8560_ $$fdavid.berghmans@ksb-orb.be
000007700 85642 $$ahttps://arxiv.org/abs/2509.26586
000007700 85642 $$ahttps://iopscience.iop.org/article/10.3847/2041-8213/ae10a3
000007700 905__ $$apublished in
000007700 980__ $$aREFERD