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First Geodetic Results from the Australasian VLBI Network

First Geodetic Results from the Australasian VLBI Network. Oleg Titov (Geoscience Australia). ICRF3 WG Meeting , Shanghai 07 March 2014. 07 September 2013. ICRF2 vs declination.

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First Geodetic Results from the Australasian VLBI Network

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  1. First Geodetic Results from the Australasian VLBI Network Oleg Titov (Geoscience Australia) ICRF3 WG Meeting, Shanghai07 March 2014 07 September 2013

  2. ICRF2 vs declination The astrometric accuracy of the 295 ICRF2 “defining” (left) and 922 ICRF “non-defining” (right) reference radio sources as a function of declination. Geoscience Australia 07 September 2013

  3. Selected ICRF2 defining sources 1101+384 (left) and 1418+546 (right) Geoscience Australia 07 September 2013

  4. Selected ICRF2 defining sources 0007+106 (left) and 0920+390 (right) Geoscience Australia 07 September 2013

  5. Selected ICRF2 defining sources 1514+197 (left) and 1546+027 (right) Geoscience Australia 07 September 2013

  6. Scheme of a AGN emission in different wavelength (Credit: Marscher 2006, overlay image Krichbaum et al, IRAM, 1999) Geoscience Australia 07 September 2013

  7. Unified AGN models Unified model for all classes of AGN, (left) and scheme to explain a link between the Seyfert galaxies, blazars and quasars. http://jila.colorado.edu/~pja/astr3830/lecture27.pdf(Phil Armitage, University of Colorado, Boulder) Geoscience Australia 07 September 2013

  8. Source 0917-354 (~15m) size 8” size 3” 0917-354 image from SuperCOSMOS (left) and NTT (right) No surrounding galaxy is seen Geoscience Australia 07 September 2013

  9. Spectra Geoscience Australia 07 September 2013

  10. Unified AGN models NTT images for galaxies 2313-182 (left) and 2317-372 (right) Geoscience Australia 07 September 2013

  11. Optical Characteristics of Astrometric Radio Sources (OCARS) Zinovy Malkin’s database; http://www.gao.spb.ru/english/as/ac_vlbi/ocars.txt (Malkin & Titov, Proc of IVS GM, 2008; Titov & Malkin, A&A, 506, 1477, 2009) Geoscience Australia 07 September 2013

  12. N(z) N(z) distrubution for ‘AQ’ and ‘non-AQ’ radio sources Geoscience Australia 07 September 2013

  13. Conclusion • Balmer emission lines (BEL) are likely to be a good indicator of ‘compactness’ of the radio source in optic (stellar-like quasar without extended structures, etc). The radio sources with broad and strong BEL would be a good candidates VLBI-Gaia link objects. • ‘AQ’ objects from the Malkin’s database should be drafted. Geoscience Australia 07 September 2013

  14. Thank you for attention! Geoscience Australia 07 September 2013

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