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A Circumstellar Disk toward the High-mass Star-forming Region IRAS 23033+5951

Published online by Cambridge University Press:  24 July 2012

M. A. Trinidad ,
T. Rodríguez  and
V. Migenes
M. A. Trinidad
Affiliation:
Depto. Astronomía, Universidad de Guanajuato, Apdo. Postal 144, Guanajuato, Gto. 36240, Mexico email: [email protected]
T. Rodríguez
Affiliation:
Depto. Astronomía, Universidad de Guanajuato, Apdo. Postal 144, Guanajuato, Gto. 36240, Mexico email: [email protected]
V. Migenes
Affiliation:
Brigham Young University, Department of Physics and Astronomy, ESC-N145, Provo, Utah 84602
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Abstract

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We present water maser observations toward IRAS 23033+5951 carried out with the VLA-EVLA in the A configuration. In order to study the spatio-kinematical distribution of the water masers detected in the region, we made a simple geometrical and kinematical model based on the conical equation. We find that the water masers are tracing a rotating and contracting circumstellar disk of about 110 AU around a very young source of 18 M⊙, which has not enough ionizing photons to be detected at centimeter wavelengths.

Keywords

High-mass stars formation: general — ISM:individual(H II regionsIRAS 23033+5951water masers
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S287: Cosmic Masers - from OH to H0 , January 2012 , pp. 192 - 193
Copyright
Copyright © International Astronomical Union 2012

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