activity
20002023
most citedHidden magnetic fields of young suns

87 citations · 897 across the 36 of their papers we have counts for

collaborators

36 papers

astro-ph.SR2023

From convective stellar dynamo simulations to Zeeman-Doppler images

Thomas Hackman, Oleg Kochukhov, Mariangela Viviani +3

Zeeman-Doppler imaging (ZDI) is used to reconstruct the surface magnetic field of late-type stars from high resolution spectropolarimetric observations. The results are usually des…

astro-ph.SR2022★ 4 cited

V889 Her: abrupt changes in the magnetic field or differential rotation?

Teemu Willamo, Thomas Hackman, Jyri J. Lehtinen +2

We have applied Zeeman-Doppler imaging (ZDI) to an extensive spectropolarimetric HARPSpol data set of the magnetically active young solar analogue V889 Her, covering 35 spectra obt…

astro-ph.CO2021★ 14 cited

Differentiable Predictions for Large Scale Structure with SHAMNet

Andrew P. Hearin, Nesar Ramachandra, Matthew R. Becker +1

In simulation-based models of the galaxy-halo connection, theoretical predictions for galaxy clustering and lensing are typically made based on Monte Carlo realizations of a mock u…

astro-ph.SR2021★ 24 cited

Zeeman-Doppler imaging of five young solar-type stars

T. Willamo, J. J. Lehtinen, T. Hackman +5

The magnetic activity of the Sun changes with the solar cycle. Similar cycles are found in other stars as well, but their details are not known to a similar degree. Characterising…

astro-ph.SR2020★ 87 cited

Hidden magnetic fields of young suns

O. Kochukhov, T. Hackman, J. J. Lehtinen +1

Global magnetic fields of active solar-like stars are nowadays routinely detected with spectropolarimetric measurements and are mapped with Zeeman-Doppler imaging (ZDI). However, d…

astro-ph.SR2020★ 12 cited

Shapes of stellar activity cycles

T. Willamo, T. Hackman, J. J. Lehtinen +4

Magnetic activity cycles are an important phenomenon in both the Sun and other stars. The shape of the solar cycle is commonly characterised by a fast rise and a slower decline, bu…