Solar Orbiter - IRIS - ADITYA - Joint Workshop

Session

Polar Science

4

17 Mar 2026, 09:00

Harnack Haus (Berlin)

36. The Sun’s Polar Magnetic Fields: Current Knowledge, Open Questions, and the Promise of SO/PHI

Gordon Petrie (National Solar Observatory)

17/03/2026, 09:00

Review talk

First Name: Gordon
Last Name: Petrie
Email Address: gpetrie@nso.edu
Affiliation: National Solar Observatory

All Authors: Gordon Petrie

Abstract: The Sun’s polar magnetic field is routinely measured from (near) Earth through full-disk synoptic programs and, less frequently, with high-resolution telescopes. These observations face inherent challenges: the large viewing angle...

13. Dynamic processes of the polar cap build-up

Kinga Albert (Max Planck Institute for Solar System Research)

17/03/2026, 09:30

Contributed talk

First Name: Kinga
Last Name: Albert
Email Address: albert@mps.mpg.de
Affiliation: Max Planck Institute for Solar System Research

All Authors: Kinga Albert, Johann Hirzberger, Gherardo Valori, Daniele Calchetti, L. P. Chitta, L. R. Bellot Rubio, J. Blanco Rodríguez, D. Orozco Suárez, S.k. Solanki and the PHI team

Abstract: In March 2025, we gained a new and exciting viewing angle...

37. The first out-of-ecliptic observation of the polar magnetic field of the Sun with SO/PHI-HRT

Daniele Calchetti (Max Planck Institute for Solar System Research)

17/03/2026, 09:45

Invited talk

First Name: Daniele
Last Name: Calchetti
Email Address: calchetti@mps.mpg.de
Affiliation: MPS

All Authors: D. Calchetti, S. Solanki, J. Hirzberger, G. Valori, D. Orozco, J. Blanco, T. Oba, H. Strecker, A. Ulyanov

Abstract: Direct remote-sensing observations of the solar poles have been hindered by the restricted view obtained from the ecliptic plane. For the first time ever,...

38. Comparison of Predicted Solar Polar Fields with Solar Orbiter Observations

Jon Linker (Predictive Science Inc.)

17/03/2026, 10:05

Contributed talk

First Name: Jon
Last Name: Linker
Email Address: linkerj@predsci.com
Affiliation: Predictive Science Inc.

All Authors: Cooper Downs, Ronald Caplan, James Turtle, Pete Riley, Gherardo Valori, Solar Orbiter PHI Team

Abstract: The photospheric magnetic field originating from the poles of the Sun expands into the upper solar atmosphere and out into the solar wind. It can profoundly...

39. Full-disk polar magnetic field maps registered with SO/PHI-FDT

Artem Ulyanov (Max Planck Institute for Solar System Research)

17/03/2026, 10:20

Contributed talk

First Name: Artem
Last Name: Ulyanov
Email Address: ulyanov@mps.mpg.de
Affiliation: Max Planck Institute for Solar System Research

All Authors: Artem Ulyanov, Sami Solanki, Daniele Calchetti, Johann Hirzberger, Hanna Strecker, Gherardo Valori, and David Orozco Suárez

Abstract: The properties of the polar magnetic flux represent one of the missing elements shaping our...

40. online – The Solar Polar-orbit Observatory (SPO) mission

Hui Tian (Peking University)

17/03/2026, 10:35

Contributed talk

First Name: Hui
Last Name: Tian
Email Address: huitian@pku.edu.cn
Affiliation: Peking University

All Authors: Hui Tian, Yuanyong Deng

Abstract: The polar regions of the Sun remain among the least-explored territories in solar physics, yet they play a crucial role in driving the solar magnetic cycle, generating the fast solar wind, and shaping space weather throughout the...