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First detection of vibrationally excited water masers toward embedded young stellar objects

Published online by Cambridge University Press:  03 August 2017

Tarja Liljeström ,
Anders Winnberg  and
Roy Booth
Tarja Liljeström
Affiliation:
Helsinki University of Technology, Metsähovi Radio Observatory, Otakaari 5.A, FIN-02150 Espoo, Finland
Anders Winnberg
Affiliation:
Chalmers University of Technology, Onsala Space Observatory, S-43992 Onsala, Sweden
Roy Booth
Affiliation:
Chalmers University of Technology, Onsala Space Observatory, S-43992 Onsala, Sweden

Abstract

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We report the first detection of vibrationally excited water maser emission in the circumstellar envelope of two young stellar objects (W51M, Z CMa). The results suggest that the observed 96 GHz water maser emission traces hot gas in an accretional stage of the protostellar evolution.

Type
Part 1. Star Formation
Information
Symposium - International Astronomical Union , Volume 206: Cosmic Masers: From Protostars to Blackholes , 2002 , pp. 55 - 58
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

Ceccarelli, C., Hollenbach, D., & Tielens, A. 1996, ApJ, 471, 400 Google Scholar
Genzel, R., et al. 1978, A&A, 66, 13 Google Scholar
Genzel, R., et al. 1981, ApJ, 247, 1039 Google Scholar
Hartmann, L., et al. 1989, ApJ, 338, 1001 Google Scholar
Leppänen, K., Liljeström, T., & Diamond, P. 1998, ApJ, 507, 909 Google Scholar
Liljeström, T., & Bergman, P. 1996, in URSI/IEEE/IRC XXI Convention on Radio Science, ed. Piironen, P. & Räisänen, A. (Espoo: Helsinki University of Technology), S 222, 37 Google Scholar
Liljeström, T., & Olofsson, G. 1997, ApJ, 478, 381 Google Scholar
Melnick, G., Menten, K., Phillips, T., & Hunter, T. 1993, ApJ, 416, L37 Google Scholar
Menten, K., & Melnick, G. 1989, ApJ, 341, L91 Google Scholar
Menten, K., & Young, K. 1995, ApJ, 450, L67 Google Scholar
Shu, F., et al. 1990, ApJ, 358, 495 Google Scholar
Shu, F., et al. 1993, in Protostars and Planets III, ed. Levy, E. H. & Mathews, S. (Tucson: Univ. Arizona Press), 3 Google Scholar