VERA observation of the massive star forming region G34.4+0.23

We observed with VERA the massive star forming region G34.4+0.23, to obtain parallaxes and proper motions. Four infrared dark clouds were observed and water maser were found in two dark clouds, MM1 and MM4. In MM1, the distribution of maser spots shows a “V-shaped” structure and most features co-mov...

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Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2007-10, Vol.3 (S248), p.202-203
Main Author: Kurayama, T.
Format: Article
Language:English
Subjects:
Astronomy
Contributed Papers
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Summary:We observed with VERA the massive star forming region G34.4+0.23, to obtain parallaxes and proper motions. Four infrared dark clouds were observed and water maser were found in two dark clouds, MM1 and MM4. In MM1, the distribution of maser spots shows a “V-shaped” structure and most features co-moving with this structure. Phase-referenced images have peaks and their motion is much larger than the expected parallax. Further analysis is needed to correctly interpret our measurement of parallax.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921308019066