"Impact of 3D NTLE on C/O Ratio in Stellar Atmospheres"

ESO Informal Discussion

  • Date: Nov 19, 2025
  • Time: 10:00 AM - 11:00 AM (Local Time Germany)
  • Speaker: Guillaume Guiglion (MPIA Heidelberg)
  • Location: ESO Garching
  • Room: Library (ESO HQ, Garching)
"Impact of 3D NTLE on C/O Ratio in Stellar Atmospheres"

Abstract


In this talk, I will discuss on the effects of departures from LTE and 1D model atmospheres in the derivation of C/O ratios in solar-like stars. I will show that using standard 1D LTE approximation largely underestimates C/O. I will discuss on the impact of such measurements in the context of planet formation.

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