Maser Astrometry with VERA and VSOP-2

Details Maser Astrometry with VERA and VSOP-2 Maser Astrometry with VERA and VSOP-2

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..402..460h&link_type=abstract

Approaching Micro-Arcsecond Resolution with VSOP-2: Astrophysics and Technologies ASP Conference Series, Vol. 402, proceedings o

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present recent results of maser astrometry obtained with VERA (VLBI Exploration of Radio Astrometry), which is a Japanese VLBI array dedicated to phase-referencing astrometry to explore the 3-D structure of the Milky Way Galaxy. Since 2004 we have been conducting regular monitoring of maser sources with VERA, and we have already detected parallaxes for several sources, ranging from a few 100 pc to 5 kpc. These results include measurements for Galactic star-forming regions such as ORI-KL, S269, NGC 281 as well as those for late type stars such as VY CMa. We also discuss the VERA---VSOP-2 connection in the near future, and propose astrometric observations with VSOP-2.

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