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
Showing 2023Show all

6 papers · 1 filter

astro-ph.SR2023★ 1 cited

Reconstruction of total solar irradiance variability as simultaneously apparent from Solar Orbiter and Solar Dynamics Observatory

K. L. Yeo, N. A. Krivova, S. K. Solanki +42

Solar irradiance variability has been monitored almost exclusively from the Earth's perspective. {We present a method to combine the unprecedented observations of the photospheric…

astro-ph.SR2023★ 1 cited

Modeling Stellar CaII H & K Emission Variations: Spot Contribution to the S-index

K. Sowmya, A. I. Shapiro, L. H. M. Rouppe van der Voort +2

The S-index is a measure of emission in the CaII H & K lines and is a widely used proxy of stellar magnetic activity. It has been assumed until now that the S-index is mainly affec…

astro-ph.SR2023★ 5 cited

Coronal voids and their magnetic nature

J. D. Nölke, S. K. Solanki, J. Hirzberger +68

Extreme ultraviolet (EUV) observations of the quiet solar atmosphere reveal extended regions of weak emission compared to the ambient quiescent corona. The magnetic nature of these…

astro-ph.SR2023★ 8 cited

Intensity contrast of solar network and faculae close to the solar limb, observed from two vantage points

K. Albert, N. A. Krivova, J. Hirzberger +43

The brightness of faculae and network depends on the angle at which they are observed and the magnetic flux density. Close to the limb, assessment of this relationship has until no…

astro-ph.SR2023★ 18 cited

Accuracy analysis of the on-board data reduction pipeline for the Polarimetric and Helioseismic Imager on the Solar Orbiter mission

Kinga Albert, Johann Hirzberger, J. Sebastián Castellanos Durán +4

Scientific data reduction on-board deep space missions is a powerful approach to maximise science return, in the absence of wide telemetry bandwidths. The Polarimetric and Heliosei…

astro-ph.SR2023★ 18 cited

Magnetic fields inferred by Solar Orbiter: A comparison between SO/PHI-HRT and SDO/HMI

J. Sinjan, D. Calchetti, J. Hirzberger +31

The High Resolution Telescope (HRT) of the Polarimetric and Helioseismic Imager on board the Solar Orbiter spacecraft (SO/PHI) and the Helioseismic and Magnetic Imager (HMI) on boa…