SIMBAD references

2005AJ....129.2831R - Astron. J., 129, 2831-2835 (2005/June-0)

Three Li-rich K giants: IRAS 12327-6523, 13539-4153, and 17596-3952.

REDDY B.E. and LAMBERT D.L.

Abstract (from CDS):

We report on spectroscopic analyses of three K giants previously suggested to be Li-rich: IRAS 12327-6523, 13539-4153, and 17596-3952. High-resolution optical spectra and the LTE model atmospheres are used to derive the stellar parameters (Teff, logg, [Fe/H]), elemental abundances, and the isotopic ratio 12C/13C. IRAS 13539-4153 shows an extremely high Li abundance of logε(Li)~4.2, a value 10 times greater than the present Li abundance in the local interstellar medium. This is the third highest Li abundance yet reported for a K giant. IRAS 12327-6523 shows a Li abundance of logε(Li)~1.4. IRAS 17596-3952 is a rapidly rotating (Vsini~35 km/s) K giant with logε(Li)~2.2. Infrared photometry shows the presence of an IR excess, suggesting mass loss. A comparison is made between these three stars and previously recognized Li-rich giants.

Abstract Copyright: ∼

Journal keyword(s): Stars: Abundances - Stars: Carbon - Stars: Chemically Peculiar - Stars: Late-Type

Simbad objects: 6

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