Stanislav Shabala
Type of contribution: oral
Session: 4

Network and quasar structure effects on the VLBI reference frame

Stanislav Shabala, University of Tasmania Jim Lovell, University of Tasmania Oleg Titov, GeoScience Australia Jamie McCallum, University of Tasmania Christopher Watson, University of Tasmania John Dickey, University of Tasmania

Network geometry and structure of quasars making up the quasi-inertial celestial reference frame provide two key limitations of the geodetic VLBI technique as it is currently implemented. Both these effects are especially pronounced in the Southern Hemisphere. Recent construction of the AuScope array helps address these issues. Inclusion of new Australian antennae improves network geometry and hence the reference frame realization. It will also allow the effects of southern quasar structure on the reference frame to be studied in more detail.