Title: The atypical emission-line star Hen 3-209
Authors: Naze, Y ×
Rauw, G
Hutsemekers, D
Gosset, E
Manfroid, J
Royer, Pierre #
Issue Date: Oct-2006
Publisher: Blackwell publishing
Series Title: Monthly notices of the royal astronomical society vol:371 issue:4 pages:1594-1600
Abstract: We analyse observations, spanning 15 yr, dedicated to the extreme emission-line object Hen 3-209. Our photometric data indicate that the luminosity of the star undergoes marked variations with a peak-to-peak amplitude of 0.65 mag. These variations are recurrent, with a period of 16.093 +/- 0.005 d. The spectrum of Hen 3-209 is peculiar with many different lines (H I, He I, Fe II,. showing P Cygni profiles. The line profiles are apparently changing in harmony with the photometry. The spectrum also contains [O III] lines that display a saddle profile topped by three peaks, with a maximum separation of about 600 km s(-1). Hen 3-209 is most likely an evolved luminous object suffering from mass ejection events and maybe belonging to a binary system.
ISSN: 0035-8711
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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