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The mass-loss before the end: two luminous blue variables with a collimated stellar wind

Published online by Cambridge University Press:  28 July 2017

C. Agliozzo Open the ORCID record for C. Agliozzo [Opens in a new window] ,
C. Trigilio ,
C. Buemi ,
P. Leto ,
G. Umana ,
G. Pignata ,
N. M. Phillips ,
R. Nikutta  and
J. L. Prieto
C. Agliozzo
Affiliation:
Departamento Ciencias Fisicas, Universidad Andres Bello, Av. Republica 252, Santiago, Chile email: [email protected]
C. Trigilio
Affiliation:
INAF-Osservatorio Astrofisico di Catania, Via S. Sofia 78, I-95123, Catania, Italy
C. Buemi
Affiliation:
INAF-Osservatorio Astrofisico di Catania, Via S. Sofia 78, I-95123, Catania, Italy
P. Leto
Affiliation:
INAF-Osservatorio Astrofisico di Catania, Via S. Sofia 78, I-95123, Catania, Italy
G. Umana
Affiliation:
INAF-Osservatorio Astrofisico di Catania, Via S. Sofia 78, I-95123, Catania, Italy
G. Pignata
Affiliation:
Departamento Ciencias Fisicas, Universidad Andres Bello, Av. Republica 252, Santiago, Chile email: [email protected]
N. M. Phillips
Affiliation:
European Southern Observatory, Alonso de Córdova 3107, Vitacura, Santiago, Chile
R. Nikutta
Affiliation:
National Optical Astronomy Observatory, 950 N Cherry Ave, Tucson, AZ 85719, USA
J. L. Prieto
Affiliation:
Núcleo Astronomía Facultad Ingeniería, Universidad Diego Portales, Av. Ejército 441, Santiago, Chile
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Abstract

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We gathered a multiwavelength dataset of two well-known LBVs. We found a complex mass-loss, with evidence of variability, such as has been seen previously. In addition, our data reveal signatures of collimated stellar winds. We propose a new scenario for these two stars where the nebula shaping is influenced by the presence of a companion star and/or fast rotation.

Keywords

stars: individual (RMC127, HR Car)stars: mass lossstars: windsoutflows
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S329: The Lives and Death-Throes of Massive Stars , November 2016 , pp. 69 - 73
Copyright
Copyright © International Astronomical Union 2017 

References

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