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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: c.agliozzo@gmail.com
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: c.agliozzo@gmail.com
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

Agliozzo, C., Nikutta, R., Pignata, G., et al. 2017, MNRAS, 466, 213 Google Scholar
Boffin, H. M. J., Rivinius, T., Mérand, A., et al. 2016, A&A, 593, A90 Google Scholar
Buemi, C. S., Trigilio, C., Leto, P., et al. 2017, MNRAS, 465, 4147 Google Scholar
Clampin, M., Nota, A., Golimowski, D. A., Leitherer, C., & Durrance, S. T., 1993, ApJ (Letters), 410, L35 CrossRefGoogle Scholar
Davies, B., Oudmaijer, R. D., & Vink, J. S., 2005, A&A, 439, 1107 Google Scholar
Humphreys, R. M. & Davidson, K., 1994, PASP, 106, 1025 Google Scholar
Humphreys, R. M., Weis, K., Davidson, K., & Gordon, M. S., 2016, ApJ, 825, 64 CrossRefGoogle Scholar
Nikutta, R. & Agliozzo, C. 2016, Astrophysics Source Code Library, ascl:1611.009Google Scholar
Nota, A., Livio, M., Clampin, M., & Schulte-Ladbeck, R., 1995, ApJ, 448, 788 Google Scholar
Nota, A., Smith, L., Pasquali, A., Clampin, M., & Stroud, M., 1997, ApJ, 486, 338 CrossRefGoogle Scholar
Reynolds, S. P., 1986, ApJ, 304, 713 Google Scholar
Sana, H., de Mink, S. E., de Koter, A., et al. 2012, Science, 337, 444 Google Scholar
Schulte-Ladbeck, R. E., Leitherer, C., Clayton, G. C., et al. 1993, ApJ, 407, 723 Google Scholar
Smith, N. & Tombleson, R., 2015, MNRAS, 447, 598 Google Scholar
Weis, K., 2003, A&A, 408, 205 Google Scholar
White, S. M., 2000, ApJ, 539, 851 Google Scholar