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HD 150136: towards one of the most massive systems?
Mahy, Laurent; Gosset, Eric; Sana, Hugues et al.
2011 • In Neiner, Coralie; Wade, G.; Meynet, G. et al. (Eds.) Active OB stars: structure, evolution, mass loss and critical limits
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https://hdl.handle.net/2268/97136
DOI
10.1017/S1743921311011276
 

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Keywords :
stars: individual (HD 150136); binaries: spectroscopic; stars: fundamental parameters
Abstract :
[en] We present the preliminary results of an intensive monitoring devoted to HD 150136. Already quoted as an O3+O6 binary, we detected a third O-type component physically linked to the system, making it one of the nearest (1.3 kpc) most massive systems known until now (~134M[SUB]solar[/SUB]). To determine the physical parameters of this system, we applied a disentangling program to study individually the three components. It allows us to constrain their spectral types and to derive a new orbital solution for the short-period system.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Mahy, Laurent ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Sciences spatiales
Gosset, Eric ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)
Sana, Hugues;  Sterrenkundig Instituut ‘Anton Pannekoek’, Universiteit van Amsterdam, Postbus 94249, NL-1090 GE Amsterdam, The Netherlands
Rauw, Grégor  ;  Institut d'Astrophysique et de Géophysique, University of Liège, Allée du 6 Août, 17, Bât. B5C, B-4000, Liège, Belgium
Fauchez, Thomas;  Institut d'Astrophysique et de Géophysique, University of Liège, Allée du 6 Août, 17, Bât. B5C, B-4000, Liège, Belgium
Nitschelm, Christian;  Instituto de Astronomía, Universidad Católica del Norte, Avenida Angamos 0610, Antofagasta, Chile
Language :
English
Title :
HD 150136: towards one of the most massive systems?
Publication date :
01 July 2011
Audience :
International
Main work title :
Active OB stars: structure, evolution, mass loss and critical limits
Main work alternative title :
[en] Proceedings IAU Symposium no. 272
Editor :
Neiner, Coralie
Wade, G.
Meynet, G.
Peters, G.
Pages :
521-522
Additional URL :
http://adsabs.harvard.edu/abs/2011IAUS..272..521M
Available on ORBi :
since 16 August 2011

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