Lithium in the Pleiades and Alpha Persei clusters
1988; IOP Publishing; Volume: 327; Linguagem: Inglês
10.1086/166201
ISSN1538-4357
AutoresAnn Merchant Boesgaard, K.G. Budge, Mary Ramsay,
Tópico(s)Astrophysics and Star Formation Studies
Resumoview Abstract Citations (116) References (28) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Lithium in the Pleiades and alpha Persei Clusters Boesgaard, Ann Merchant ; Budge, Kent G. ; Ramsay, Mary Elizabeth Abstract The authors have made observations of the Li region in 23 F dwarfs of the Pleiades and α Per clusters. All 21 of the stars in the temperature region 6100 - 7300K show strong Li I lines with values of log N(Li) near 3.0 [where log N(H) = 12.0]. There is no apparent Li dip in the Pleiades Li-temperature profile, although a decrease to log N(Li) ≡ 2.85 near 6500K cannot be excluded. The dramatic decline in surface Li, possibly caused by diffusion or differential rotation, apparently occurs for cluster stars between the ages of ≡5×107 and ≡5×108yr. The authors have determined the [Fe/H] abundances for each of their Pleiades and α Per stars. The mean [Fe/H] for the Pleiades is 0.00±0.05 and for α Per is +0.01±0.07. Publication: The Astrophysical Journal Pub Date: April 1988 DOI: 10.1086/166201 Bibcode: 1988ApJ...327..389B Keywords: Abundance; Dwarf Stars; Lithium; Star Clusters; Stellar Spectrophotometry; Stellar Temperature; Charge Coupled Devices; Pre-Main Sequence Stars; Signal To Noise Ratios; Stellar Atmospheres; Stellar Spectra; Astrophysics; CLUSTERS: OPEN; STARS: ABUNDANCES full text sources ADS | data products SIMBAD (27)
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