Li in Open Clusters: Cool Dwarfs in the Young, Subsolar Metallicity Cluster M35 (NGC 2168)

Li in Open Clusters: Cool Dwarfs in the Young, Subsolar Metallicity Cluster M35 (NGC 2168)

Hydra spectra of 85 G-K dwarfs in the young cluster, M35, near the Li 6708 Angstrom line region are analyzed. From velocities and Gaia astrometry, 78 are likely single-star members which, combined with previous work, produces 108 members with T_eff ranging from 6150 to 4000 K as defined by multicolo...

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Veröffentlicht in:arXiv.org 2018-06
Hauptverfasser: Anthony-Twarog, B J, Deliyannis, C P, Harmer, D, Lee-Brown, D B, Steinhauer, A, Sun, Q, Twarog, B A
Format: Artikel
Sprache:eng
Schlagworte:
Astrometry
Depletion
Metallicity
Open clusters
Photometry
Physics - Solar and Stellar Astrophysics
Rotation
Solar rotation
Stars
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Zusammenfassung:Hydra spectra of 85 G-K dwarfs in the young cluster, M35, near the Li 6708 Angstrom line region are analyzed. From velocities and Gaia astrometry, 78 are likely single-star members which, combined with previous work, produces 108 members with T_eff ranging from 6150 to 4000 K as defined by multicolor, broad-band photometry, E(B-V ) = 0.20 and [Fe/H] = -0.15, though there are indications the metallicity may be closer to solar. A(Li) follows a well-delineated decline from 3.15 for the hottest stars to upper limits
ISSN:2331-8422
DOI:10.48550/arxiv.1806.04112