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Multi-epoch water maser survey towards low-mass YSOs

Published online by Cambridge University Press:  03 August 2017

Ray S. Furuya ,
Yoshimi Kitamura ,
Alwyn Wootten ,
Mark J. Claussen  and
Ryohei Kawabe
Ray S. Furuya
Affiliation:
Osservatorio Astrofisico di Arcetri, Largo Enrico Fermi 5, 50125, Firenze, Italy
Yoshimi Kitamura
Affiliation:
Institute of Space and Astronautical Science, Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan
Alwyn Wootten
Affiliation:
National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903, USA
Mark J. Claussen
Affiliation:
National Radio Astronomy Observatory, 1003 Lopezville Road, Socorro, NM 87801, USA
Ryohei Kawabe
Affiliation:
Nobeyama Radio Observatory, Nobeyama 411, Minamimaki, Minamisaku, Nagano 384-1305, Japan

Abstract

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We present the results from a series of multi-epoch 22 GHz H2O maser surveys with the Nobeyama 45 m telescope and the VLA towards low-mass young stellar objects, including all the class 0 sources in the northern sky. Our Nobeyama 45 m survey is the deepest survey - down to an isotopic H2O luminosity of ∼ 10−13L⊙ - performed so far. From this survey, we obtained the following results. (1) Class 0 sources show high H2O maser activity: our derived detection rates are ∼ 38% for class 0, but only ∼ 4% for class I sources. (2) Activity of the H2O masers is more likely related to 100 AU scale ionized jets than to large scale molecular outflows.

Type
Part 1. Star Formation
Information
Symposium - International Astronomical Union , Volume 206: Cosmic Masers: From Protostars to Blackholes , 2002 , pp. 35 - 38
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

Andrè, P., Ward-Thompson, D., & Barsony, M. 1993, ApJ, 406, 122 CrossRefGoogle Scholar
Bachiller, R. 1996, ARA&A, 34, 111 Google Scholar
Bontemps, S. et al. 1996, A&A, 311, 858 Google Scholar
Chernin, L. M. 1995, ApJ, 440, L97 CrossRefGoogle Scholar
Claussen, M. J. et al. 1996, ApJS, 106, 111 CrossRefGoogle Scholar
Claussen, M. J. et al. 1998, ApJ, 507, L79 CrossRefGoogle Scholar
Felli, M., Palagi, F., & Tofani, G. 1992, A&A, 252, 293 Google Scholar
Fiebig, D. et al. 1996, A&A, 310, 199 Google Scholar
Furuya, R. S. et al. 1999, ApJ, 525, 821 Google Scholar
Furuya, R. S. et al. 2000, ApJ, 542, L135 CrossRefGoogle Scholar
Meehan, L. S. G. et al. 1998, AJ, 115, 1599 Google Scholar
Moriarty-Schieven, G. H. et al. 1992, ApJ, 400, 260 Google Scholar
Patel, N. et al. 2000, ApJ, 538, 268 Google Scholar
Richer, J. S. et al. 1993, MNRAS, 262, 839 Google Scholar
Wilking, B. A. et al. 1994, ApJ, 431, L119 Google Scholar
Wootten, A. 1989, ApJ, 337, 858 Google Scholar