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Water maser and radio continuum emission towards IRAS 23139+5939

Published online by Cambridge University Press:  01 March 2007

M. A. Trinidad ,
S. Curiel ,
J. M. Torrelles ,
L. F. Rodríguez ,
V. Migenes  and
N. Patel
M. A. Trinidad
Affiliation:
Depto. Astronomia, Univ. de Guanajuato, Apdo. Postal 144, Guanajuato, Gto.Mexico email: trinidad@astro.ugto.mx
S. Curiel
Affiliation:
Instituto de Astronomia, UNAM, Apdo. Postal 70-264, D.F. 04510, Mexico
J. M. Torrelles
Affiliation:
Instituto de Ciencias del Espacio and Institut d'Estudis Espacials de Catalunya, Facultat de Fisica, Planta 7a, Universitat de Barcelona, Av. Diagonal 647, 08028 Barcelona, Spain
L. F. Rodríguez
Affiliation:
CRyA, UNAM, Apdo. Postal 3-72 (Xangari) 58089 Morelia, Michoacan, Mexico
V. Migenes
Affiliation:
Depto. Astronomia, Univ. de Guanajuato, Apdo. Postal 144, Guanajuato, Gto.Mexico email: trinidad@astro.ugto.mx
N. Patel
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
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Abstract

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We present simultaneous observations of continuum (3.5 and 1.3cm) and water maser line emission (1.3cm) carried out with the VLA-A toward the high-mass object IRAS 23139+5939. We detected two radio continuum sources at 3.5cm separated by 0”5 (~2400 AU), I23139 and I23139S. Based on the observed continuum flux density and the spectral index, we suggest that I23139 is a thermal radio jet associated with a high-mass YSO. On the other hand, based on the spatio-kinematical distribution of the water masers, together with the continuum emission information, we speculate that I23139S is also a jet source powering some of the masers detected in the region.

Keywords

ISM: jets and outflowsmasers
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S242: Astrophysical Masers and their Environments , March 2007 , pp. 180 - 181
Copyright
Copyright © International Astronomical Union 2008

References

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