Title: The Lithium-rich supergiant HD172365
Authors: Andrievsky, SM ×
Gorlova, Nadiya
Klochkova, VG
Kovtyukh, VV
Panchuk, VE #
Issue Date: 1999
Publisher: Wiley-v c h verlag gmbh
Series Title: Astronomische nachrichten vol:320 issue:1 pages:35-41
Abstract: The F-type supergiant HD172365 was discovered by Luck (1982) to be a high Li abundance star. We find that the lithium abundance in this star is log A(Li) = 2.9 from a careful spectroscopic study. This value is larger than the abundance derived by Luck. We discuss the properties of this supergiant and tentatively conclude that HD172365 may, in fact, be a post-blue straggler star with a mass similar to 2 times greater than the "turn-off point" mass for the open cluster IC 4756, of which HD172365 is a member. The star is formed by a merger of a close binary system. This conclusion is supported by, for example, its large projected rotational velocity, solar carbon abundance and high lithium content.
ISSN: 0004-6337
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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