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Simulation of Systematic Errors in Phase-Referenced VLBI Astrometry
- Source :
- Astronomical Society of the Pacific Conference Series, Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA, Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA, 2005,-, United States. pp.538
- Publication Year :
- 2005
- Publisher :
- HAL CCSD, 2005.
-
Abstract
- International audience; The astrometric accuracy in the relative coordinates of two angularly-close radio sources observed with the phase-referencing VLBI technique is limited by systematic errors. These include geometric errors and atmospheric errors. Based on simulation with the SPRINT software, we evaluate the impact of these errors in the estimated relative source coordinates for standard VLBA observations. Such evaluations are useful to estimate the actual accuracy of phase-referenced VLBI astrometry.
- Subjects :
- [PHYS.ASTR.GA]Physics [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA]
Astrophysics::High Energy Astrophysical Phenomena
[PHYS.ASTR.GA] Physics [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA]
Astrophysics::Instrumentation and Methods for Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
[SDU.ASTR.GA]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA]
[SDU.ASTR.GA] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA]
Astrophysics::Galaxy Astrophysics
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Astronomical Society of the Pacific Conference Series, Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA, Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA, 2005,-, United States. pp.538
- Accession number :
- edsair.dedup.wf.001..11259ef9b90be2054e4fd5409a37b240