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A criterion to select Li-rich giants

  • B. Barbuy
  • B. V. Castilho
  • J. Gregorio-Hetem
Contributed Papers
Part of the Lecture Notes in Physics book series (LNP, volume 458)

Abstract

We have studied the IRAS colours of Li-rich giants, concluding that they define a locus on the IRAS colours diagram (Gregorio-Hetem et al. 1993), within a box of colours −0.7<[25–12]<−0.3 and 0.0<[60–25]<+0.25. Such infrared colours indicate the presence of dust. We have up to now found 3 Li-rich giants, out of a sample of 30 candidates. We suggest that dusty cool AGB stars produce Li, and may be partly responsible for the Li enrichment in the Galaxy.

Keywords

Dust Effect Star Form Region Asymptotic Giant Branch Tauri Star Asymptotic Giant Branch Star 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • B. Barbuy
    • 1
  • B. V. Castilho
    • 1
  • J. Gregorio-Hetem
    • 1
  1. 1.IAG, Depto de AstronomiaUniversidade de São PauloSão PauloBrazil

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