Article (Scientific journals)
Discovery of the first eclipsing binary barium star
Jorissen, A.; Manfroid, Jean; Sterken, C.
1991In Messenger, 66, p. 53-56
 

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Keywords :
BARIUM; ECLIPSING BINARY STARS; METALLIC STARS; RED GIANT STARS; STELLAR MAGNITUDE; STELLAR SPECTROPHOTOMETRY; ASTRONOMICAL OBSERVATORIES; PECULIAR STARS
Abstract :
[en] Photometric monitoring of barium stars is discussed with particular attention given to the first eclipsing binary barium star, HD 46407. The spectroscopic ephemeris of HD 46407 was used to predict the times of a possible eclipse of the companion by the barium star. It is concluded that the light curve of HD 46407 derived from the photometric observations in the D50 system displays a sharp 'primary' eclipse (companion behind the barium star) and a possible shallow 'secondary' eclipse. The primary eclipse occurred in November 1988 and had a depth of about 0.02 mag.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Jorissen, A.;  ESO, Garching, Germany
Manfroid, Jean  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Sterken, C.;  Brussel, Vrije Univ., Brussels, Belgium
Language :
English
Title :
Discovery of the first eclipsing binary barium star
Publication date :
01 December 1991
Journal title :
Messenger
ISSN :
0722-6691
Publisher :
European Southern Observatory, Garching, Germany
Volume :
66
Pages :
53-56
Available on ORBi :
since 18 February 2010

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