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researcher

A. Wehrhahn

10 papers hereh-index 8199 citations12 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author1
  • middle author5
  • last author2

Across the 8 of 10 papers where every author was matched, so the position is known.

fields
  • astro-ph.SR5
  • astro-ph.IM3
  • astro-ph.EP2

identity via Semantic Scholar / OpenAlex

activity
20182026
most citedThe GALAH Survey: Non-LTE departure coefficients for large spectroscopic surveys

105 citations · 430 across the 10 of their papers we have counts for

collaborators
Showing 2020Show all

3 papers · 1 filter

astro-ph.SR2020★ 105 cited

The GALAH Survey: Non-LTE departure coefficients for large spectroscopic surveys

A. M. Amarsi, K. Lind, Y. Osorio +23

Massive sets of stellar spectroscopic observations are rapidly becoming available and these can be used to determine the chemical composition and evolution of the Galaxy with unpre…

astro-ph.IM2020★ 29 cited

Optimal extraction of echelle spectra: getting the most from observations

Nikolai Piskunov, Ansgar Wehrhahn, Thomas Marquart

The price of instruments and observing time on modern telescopes is quickly increasing with the size of the primary mirror. Therefore, it is worth revisiting the data reduction alg…

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…

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