Title: Spectral variability of the binary HR 4049
Authors: Bakker, EJ ×
Lambert, DL
Van Winckel, Hans
McCarthy, JK
Waelkens, Christoffel
Gonzalez, G #
Issue Date: Aug-1998
Publisher: EDP Sciences
Series Title: Astronomy & Astrophysics vol:336 issue:1 pages:263-275
Abstract: The C I, Na I D, and H alpha lines of the post-AGE binary HR 4049 have been studied. Na I D variability results from a photospheric absorption component ([Na/H]=-1.6 +/- 0.2) which follows the velocity of the primary and a stationary, non-photospheric component. An emission component is attributed to the circumbinary disc, and an absorption component to mass-loss from the system with a velocity of 5.3 +/- 0.5 km s(-1).
ISSN: 1432-0746
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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