Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-08T03:27:59.145Z Has data issue: false hasContentIssue false
  • English
  • Français

Polarization of the Recombination Line Maser in MWC349

Published online by Cambridge University Press:  24 July 2012

C. Thum ,
D. Morris  and
H. Wiesemeyer
C. Thum
Affiliation:
IRAM, Avenida Divina Pastora, 7, Núcleo Central, E 18012 Granada, Spain email: [email protected]
D. Morris
Affiliation:
IRAM, 300 rue de la Piscine, Domaine Universitaire de Grenoble38406 Saint Martin d'Hres, France email: [email protected]
H. Wiesemeyer
Affiliation:
MPIfR, Auf dem Hügel 515300 Bonn, Germany email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present observations of the circular polarization of the recombination line maser in MWC 349. Six good quality Ha30α spectra were obtained during 2010 – 2011 which show that the Zeeman features are complex, time variable, and usually different for the blue- and red-shifted maser spikes. We propose that the magnetic field, located in the corona of the circumstellar disk, has toroidal and radial components. It is plausibly generated in a disk dynamo.

Keywords

stars: individual (MWC 349)stars: magnetic fieldsstars: windsoutflows
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S287: Cosmic Masers - from OH to H0 , January 2012 , pp. 49 - 53
Copyright
Copyright © International Astronomical Union 2012

References

Altenhoff, W. J., Strittmatter, P. A. & Wendker, H. J. 1981, A&A, 93, 48Google Scholar
Altenhoff, W. J., Thum, C., & Wendker, H. J. 1994, A&A, 281, 161Google Scholar
Carter, M., Lazareff, B., Maier, D., et al. 2012, A&A, 538, A89Google Scholar
Martín-Pintado, J., Bachiller, R., Thum, C., & Walmsley, C. M. 1989, A&A, 215, L13Google Scholar
Martín-Pintado, J., Thum, C., Planesas, P., & Báez-Rubio, A., 2011 A&A, 53, L15Google Scholar
Myers, P. C. & Goodman, A. A. 1988, ApJ, 326, L27Google Scholar
Nedoluha, G. E. & Watson, W. D. 1994, ApJ, 423, 394CrossRefGoogle Scholar
Tafoya, D., Gómez, Y., & Rodríguez, L. F. 2004, ApJ, 610, 827Google Scholar
Thum, C., Martín-Pintado, J., & Bachiller, R. 1992, A&A, 256, 507Google Scholar
Thum, C., Martín-Pintado, J., Quirrenbach, A., & Matthews, H. E. 1998, A&A, 333, L63–L66Google Scholar
Thum, C. & Morris, D. 1999 A&A, 344, 923–929Google Scholar
Thum, C., Wiesemeyer, H., Paubert, G., Navarro, S., & Morris, D. 2008, PASP, 120, 777CrossRefGoogle Scholar
Tout, C. A. & Pringle, J. E. 1992, MNRAS, 259, 604Google Scholar
White, R. L. & Becker, R. H. 1985, ApJ, 297, 677CrossRefGoogle Scholar