SIMBAD references

2018AJ....156...53C - Astron. J., 156, 53-53 (2018/August-0)

A search for candidate Li-rich giant stars in SDSS DR10.

CARBON D.F., GRAY R.O., NELSON B.C. and HENZE C.

Abstract (from CDS):

We report the results of a search for candidate Li-rich giants among 569,738 stars of the SDSS DR10 data set. With small variations, our approach is based on that taken in an earlier search for extremely metal-poor/carbon-enhanced metal-poor stars and uses the same data set. As part of our investigation, we demonstrate a method for separating post-main-sequence and main-sequence stars cooler than Teff ≃ 5800 K using our feature strength measures of the Sr II 4078, Fe I 4072, and Ca I 4227 lines. By taking carefully selected cuts in a multi-dimensional phase space, we isolate a sample of potential Li-rich giant stars. From these, using detailed comparison with dwarf and giant MILES stars, and our own individual spectral classifications, we identify a set of high likelihood candidate Li-rich giant stars. We offer these for further study to promote an understanding of these enigmatic objects.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): methods: data analysis - stars: chemically peculiar - surveys - techniques: spectroscopic

Simbad objects: 14

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