Molecular line lists for modelling the opacity of cool stars

Jonathan Tennyson (1) , Gregory Harris (2) , Bob Barber (2) , Santina La Delfa (2) , Boris A Voronin (2) , Yakov V Pavlenko (3)

1 Chemistry
2 UCL
3 MAO - Main Astronomical Observatory of NAS of Ukraine

The behaviour of cool stars is largely governed by molecular absorptions in their outer atmospheres. At the temperatures involved (1000 -- 4000 K), the number of transitions involved can be vast. The underlying physics of the problem is outlined and the status attempts to address the demands of stellar models discussed. Progress on calculations of line lists for stellar models at UCL is described. Specific examples of involving water, HCN/HNC, C$_3$, H$_3^+$ and HDO are given. Outstanding needs are summarised.

Mots clés: Physical Sciences

Jonathan Tennyson, Gregory Harris, Bob Barber, Santina La Delfa, Boris A Voronin, et al.. Molecular line lists for modelling the opacity of cool stars. Molecular Physics, 2007, 105 (05-07), pp.701-714. ⟨10.1080/00268970701196983⟩. ⟨hal-00513080⟩