Phase reference VLBI astrometry fro Mira-type stars

Details Phase reference VLBI astrometry fro Mira-type stars Phase reference VLBI astrometry fro Mira-type stars

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003assl..283..411h&link_type=abstract

In: Mass-losing pulsating stars and their circumstellar matter. Workshop, May 13-16, 2002, Sendai, Japan, edited by Y. Nakada, M

Astronomy and Astrophysics

Astrophysics

Maser, Phase-Referencing Vlbi

Scientific paper

We carried out phase reference VLBI observations at 43 GHz between SiO masers in Mira type variables and adjacent extragalactic continuum source with VLBA. Main aim of this obervation is determination of spatial distribution between SiO maser spots at υ=1 and υ=2, J=1→0 transition. Although the standard calibration was successful for each source, the phase reference calibration have not been successful. However, we will determine the absolute positional difference of each SiO maser spot within about 1 milliarcsecond due to the structure effect of reference source if the phase reference VLBI is successful.

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