SIMBAD references

2004ApJ...601..485F - Astrophys. J., 601, 485-499 (2004/January-3)

Synthetic Lick indices and detection of α-enhanced stars.

FRANCHINI M., MOROSSI C., DI MARCANTONIO P., MALAGNINI M.L., CHAVEZ M. and RODRIGUEZ-MERINO L.

Abstract (from CDS):

Synthetic Lick indices computed with solar scaled abundances and with α-element enhancement are presented and compared with predictions from both theoretical computations (Tripicco & Bell; Thomas, Maraston, & Bender; Barbuy et al.) and empirical fitting functions (de Freitas Pacheco). We propose selected combinations of indices capable of singling out α-enhanced stars without requiring previous knowledge of their main atmospheric parameters. By applying this approach to the 460 stars in the Worthey et al. catalog, we detected a list of 82 candidate α-enhanced stars. The confirmation of α-enhancement was obtained by searching the literature for individual element abundance determinations from high-resolution spectroscopy for a subsample of 34 stars. Preliminary discussion of the properties of the detected α-enhanced stars with respect to their [Fe/H] values and kinematics is presented.

Abstract Copyright:

Journal keyword(s): Galaxy: Stellar Content - Stars: Abundances - Stars: Late-Type

VizieR on-line data: <Available at CDS (J/ApJ/601/485): table1a.dat table1b.dat table1c.dat table1d.dat table2.dat>

Simbad objects: 85

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