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## Structural Delays in the VLBI Data Analysis

Transactions of IAA RAS, issue 45, 43–50 (2018)

Keywords: radio source positions, ICRF, structural delay

### Abstract

The main astrometric radio source position catalogues which are used to create the ICRF are obtained currently without the radio source structure taken into account. The latest attempts to use the data about the source structure have produced the catalogues which cannot be compared with the catalogues of other analysis centres, as they do not use these data. However, now we have the GAIA optical catalogue, therefore we can make comparisons with it. We have used the two component dipole and the multicomponent source structure models which had been implemented by the QUASAR’s software. Several different solutions built are shown that the multicomponent model reduces the differences in the catalogue’s positions as compared to the GAIA catalogue.

### Citation

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BibTeX
RIS
V. Gubanov, S. Kurdubov, S. Mironova, I. Surkis. Structural Delays in the VLBI Data Analysis // Transactions of IAA RAS. — 2018. — Issue 45. — P. 43–50. @article{gubanov2018, abstract = {The main astrometric radio source position catalogues which are used to create the ICRF are obtained currently without the radio source structure taken into account. The latest attempts to use the data about the source structure have produced the catalogues which cannot be compared with the catalogues of other analysis centres, as they do not use these data. However, now we have the GAIA optical catalogue, therefore we can make comparisons with it. We have used the two component dipole and the multicomponent source structure models which had been implemented by the QUASAR’s software. Several different solutions built are shown that the multicomponent model reduces the differences in the catalogue’s positions as compared to the GAIA catalogue.}, author = {V. Gubanov and S. Kurdubov and S. Mironova and I. Surkis}, doi = {10.32876/ApplAstron.45.43-50}, issue = {45}, journal = {Transactions of IAA RAS}, keyword = {radio source positions, ICRF, structural delay}, pages = {43--50}, title = {Structural Delays in the VLBI Data Analysis}, url = {http://iaaras.ru/en/library/paper/1816/}, year = {2018} } TY - JOUR TI - Structural Delays in the VLBI Data Analysis AU - Gubanov, V. AU - Kurdubov, S. AU - Mironova, S. AU - Surkis, I. PY - 2018 T2 - Transactions of IAA RAS IS - 45 SP - 43 AB - The main astrometric radio source position catalogues which are used to create the ICRF are obtained currently without the radio source structure taken into account. The latest attempts to use the data about the source structure have produced the catalogues which cannot be compared with the catalogues of other analysis centres, as they do not use these data. However, now we have the GAIA optical catalogue, therefore we can make comparisons with it. We have used the two component dipole and the multicomponent source structure models which had been implemented by the QUASAR’s software. Several different solutions built are shown that the multicomponent model reduces the differences in the catalogue’s positions as compared to the GAIA catalogue. DO - 10.32876/ApplAstron.45.43-50 UR - http://iaaras.ru/en/library/paper/1816/ ER -