SIMBAD references

1997A&A...323...86R - Astronomy and Astrophysics, volume 323, 86-97 (1997/7-1)

Lithium abundances in the young open cluster IC 2602.

RANDICH S., AHARPOUR N., PALLAVICINI R., PROSSER C.F. and STAUFFER J.R.

Abstract (from CDS):

We have obtained high-resolution spectra for 28 candidate late-type stars in the 30 Myr old cluster IC 2602. NLTE Li abundances have been derived from measured equivalent widths. The log n(Li)-Teff and log n(Li)-mass distributions for our sample stars have been compared with those of the Pleiades and α Persei. Our data show that F stars in the three clusters have the same lithium content, which corresponds to the initial content for Pop. I stars. G and early-K IC 2602 stars are, on average, somewhat more Li-rich than their counterparts in the two slightly older clusters. Finally, the latest-type IC 2602 stars are heavily Li depleted, with their Li content being as low as the lowest measured among the Pleiades. As in the Pleiades and α Per, a star-to-star scatter in lithium is observed among 30 Myr old late-K/early-K dwarfs in IC 2602, indicating that this spread develops in the pre-main sequence phases.

Abstract Copyright:

Journal keyword(s): stars: abundances - stars: evolution - open clusters and association: individual: IC 2602

Simbad objects: 31

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