Journal
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA
Volume 32, Issue -, Pages -Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/pasa.2015.34
Keywords
stars: chemically peculiar; stars: early-type; stars: abundances
Categories
Funding
- Australian Research Council
- Danish National Research Foundation [DNRF106]
- ASTERISK project (ASTERoseismic Investigations with SONG and Kepler) - European Research Council [267864]
- National Science Foundation [AST-1211213]
- College of Charleston [AST-1211221]
- Appalachian State University [AST-1211215]
- NSF
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [1211215, 1211221] Funding Source: National Science Foundation
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The literature on the lambda Boo stars has grown to become somewhat heterogenous, as different authors have applied different criteria across the UV, optical, and infrared regions to determine the membership status of lambda Boo candidates. We aim to clear up the confusion by consulting the literature on 212 objects that have been considered as lambda Boo candidates, and subsequently evaluating the evidence in favour of their admission to the lambda Boo class. We obtained new spectra of similar to 90 of these candidates and classified them on the MK system to aid in the membership evaluations. The re-evaluation of the 212 objects resulted in 64 members and 103 non-members of the lambda Boo class, with a further 45 stars for which membership status is unclear. We suggest observations for each of the stars in the latter category that will allow them to be confidently included or rejected from the class. Our reclassification facilitates homogenous analysis on group members, and represents the largest collection of confirmed lambda Boo stars known.
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