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3-Dimensional kinematics of water/SiO masers in Orion-KL

Published online by Cambridge University Press:  24 July 2012

Mi Kyoung KIM ,
Tomoya Hirota  and
Kobayashi Hideyuki
Mi Kyoung KIM
Affiliation:
National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo, Japan
Tomoya Hirota
Affiliation:
National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo, Japan
Kobayashi Hideyuki
Affiliation:
National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo, Japan
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Abstract

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Results of multi-epoch VLBI observations toward water/SiO masers in Orion-KL are presented. We conducted high-resolution VLBI observations of water/SiO masers with VERA to probe the structure and the kinematics of the disk/outflow in Orion-KL. The VERA observations provide the positions and proper motions of masers features in Orion-KL with the highest accuracy ever observed. The results of water and SiO maser observations suggest that Source I is a massive YSO with an accretion disk and a collimated outflow.

Keywords

masersstars:formation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S287: Cosmic Masers - from OH to H0 , January 2012 , pp. 415 - 416
Copyright
Copyright © International Astronomical Union 2012

References

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