Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-23T04:35:52.858Z Has data issue: false hasContentIssue false
  • English
  • Français

Preliminary results on SiO v=3 J=1−0 maser emission from AGB stars

Published online by Cambridge University Press:  24 July 2012

J.-F. Desmurs ,
V. Bujarrabal ,
M. Lindqvist ,
J. Alcolea ,
R. Soria-Ruiz  and
P. Bergman
J.-F. Desmurs
Affiliation:
Observatorio Astronómico Nacional, Madrid, Spain. email: [desmurs@oan.es, bujarrabal@oan.es, alcolea@oan.es, r.soria@oan.es
V. Bujarrabal
Affiliation:
Observatorio Astronómico Nacional, Madrid, Spain. email: [desmurs@oan.es, bujarrabal@oan.es, alcolea@oan.es, r.soria@oan.es
M. Lindqvist
Affiliation:
Onsala Space Observatory, Chalmers Univ. of Technology, Sweden email: [michael.lindqvist@chalmers.se, pbergman@chalmers.se]
J. Alcolea
Affiliation:
Observatorio Astronómico Nacional, Madrid, Spain. email: [desmurs@oan.es, bujarrabal@oan.es, alcolea@oan.es, r.soria@oan.es
R. Soria-Ruiz
Affiliation:
Observatorio Astronómico Nacional, Madrid, Spain. email: [desmurs@oan.es, bujarrabal@oan.es, alcolea@oan.es, r.soria@oan.es
P. Bergman
Affiliation:
Onsala Space Observatory, Chalmers Univ. of Technology, Sweden email: [michael.lindqvist@chalmers.se, pbergman@chalmers.se]
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 the results of SiO maser observations at 43 GHz toward two AGB stars using the VLBA. Our preliminary results on the relative positions of the different J=1–0 SiO masers (v=1,2 and 3) indicate that the current ideas on SiO maser pumping could be wrong at some fundamental level. A deep revision of the SiO pumping models could be necessary.

Keywords

MaserAGB stars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S287: Cosmic Masers - from OH to H0 , January 2012 , pp. 252 - 253
Copyright
Copyright © International Astronomical Union 2012

References

Alcolea, J., Bujarrabal, V., & Gallego, J. D., 1989, A&A 211, 187Google Scholar
Bujarrabal, V. & Nguyen-Q-Rieu, , 1981, A&A 102, 65Google Scholar
Bujarrabal, V., 1994, A&A 285, 953Google Scholar
Cotton, W. D., Vlemmings, W., Mennesson, B. et al. , 2006, A&A 456, 339Google Scholar
Desmurs, J.-F., Bujarrabal, V., Colomer, F., & Alcolea, J., 2000, A&A 360, 189Google Scholar
Diamond, P. J., Kemball, A. J., Junor, W. et al. , 1994, ApJ 430, L61CrossRefGoogle Scholar
Humphreys, E. M. L., Gray, M. D., Yates, J. A. et al. , 2002, A&A 386, 256Google Scholar
Lockett, P. & Elitzur, M., 1992, ApJ 399, 704CrossRefGoogle Scholar
Soria-Ruiz, R., Alcolea, J., Colomer, F. et al. , 2004, A&A 426, 131Google Scholar
Soria-Ruiz, R., Colomer, F., Alcolea, J. et al. , 2005, A&A 432, L39Google Scholar
Soria-Ruiz, R., Colomer, F., Alcolea, J. et al. , 2007, A&A 468, L1Google Scholar