Oxygen lines in solar granulationII. Centre-to-limb variation, NLTE line formation, blends,and the solar oxygen abundance

摘要

Using high-resolution and high S/N observations of neutral oxygen lines across the solar surface, we seek to test that the3D and 1D models reproduce their observed centre-to-limb variation. In particular we seek to assess whether the latest generationof 3D hydrodynamical solar model atmospheres and NLTE line formation calculations are appropriate to derive the solar oxygenabundance.