SIMBAD references

2023MNRAS.526.1260J - Mon. Not. R. Astron. Soc., 526, 1260-1267 (2023/November-3)

A revised age greater than 50 Myr for the young cluster IC 4665.

JEFFRIES R.D., JACKSON R.J. and BINKS A.S.

Abstract (from CDS):

IC 4665 is one of only a dozen young open clusters with a 'lithium depletion boundary' (LDB) age. Using an astrometrically and spectroscopically filtered sample of cluster members, we show that both the positions of its low-mass stars in Gaia absolute colour-magnitude diagrams and the lithium depletion seen among its K- and early M-stars are discordant with the reported LDB age of $32^{+4}_{-5}$ Myr. Re-analysis of archival spectra suggests that the LDB of IC 4665 has not been detected and that the published LDB age should be interpreted as a lower limit. Empirical comparisons with similar data sets from other young clusters with better-established LDB ages indicate that IC 4665 is bracketed in age by the clusters IC 2602 and IC 2391 at 55 ± 3 Myr.

Abstract Copyright: © 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): stars: abundances - stars: evolution - stars: low-mass - stars: pre-main-sequence - open clusters and associations: general

VizieR on-line data: <Available at CDS (J/MNRAS/526/1260): table1.dat>

Errata: erratum vol. 530, p. 2906 (2024)

Simbad objects: 550

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