On the red-giant luminosity bump

  title={On the red-giant luminosity bump},
  author={J. Christensen-Dalsgaard},
  journal={Monthly Notices of the Royal Astronomical Society},
The increase in luminosity as a star evolves on the red-giant branch is interrupted briefly when the hydrogen-burning shell reaches the vicinity of the composition discontinuity left behind from the first convective dredge-up. The non-monotonic variation of luminosity causes an accumulation of stars, known as the `bump', in the distribution of stars in the colour-magnitude diagrams of stellar clusters, which has substantial diagnostic potential. Here I present numerical results on this… 

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