activity
20192026
most citedThe Polarimetric and Helioseismic Imager on Solar Orbiter

236 citations · 306 across the 17 of their papers we have counts for

collaborators

18 papers

astro-ph.SR2026

Successfully Reproducing Solar Orbiter Polar Field Observations with a Surface Flux Transport Model

Ruihui Wang, Jie Jiang, Yukun Luo +2

The solar polar field plays a fundamental role in predicting solar-cycle strength and determines the large-scale structure of the heliospheric magnetic field. The High Resolution T…

astro-ph.SR2025

The first out-of-ecliptic observations of the polar magnetic field of the Sun

D. Calchetti, S. K. Solanki, J. Hirzberger +25

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, Solar Orbiter with its re…

astro-ph.SR2025★ 3 cited

Solar limb faculae: intensity contrast from two vantage points

K. Albert, J. Hirzberger, N. A. Krivova +9

Small-scale magnetic flux concentrations contribute significantly to the brightness variations of the Sun, yet observing them - particularly their magnetic field - near the solar l…

astro-ph.SR2025★ 2 cited

Solar photospheric velocities measured in space: a comparison between SO/PHI-HRT and SDO/HMI

D. Calchetti, K. Albert, F. J. Bailén +15

The Polarimetric and Helioseismic Imager (SO/PHI) onboard Solar Orbiter is a spectropolarimeter scanning the Fe I line at 617.3 nm, providing data of the solar photosphere. The sam…

astro-ph.SR2025★ 1 cited

Supergranulation and Poleward Migration of the Magnetic Field at High Latitudes of the Sun

L. P. Chitta, D. Calchetti, J. Hirzberger +26

Magnetoconvection at the solar surface governs the dynamics in the upper solar atmosphere and sustains the heliosphere. Properties of this fundamental process are poorly described…

astro-ph.SR2025

The effect of stellar magnetic activity on measurements of morning and evening asymmetry of planetary terminator

N. Kostogryz, A. I. Shapiro, L. Carone +9

Differences in the ingress and egress shapes of transit light curves can indicate morning-evening temperature contrasts on transiting planets. Here, we pinpoint an alternative mech…