Results 101 to 110 of about 27,177 (193)
, 2003 Latex, 6 pages, 8 figures; Invited Review Talk at the ``ADeLA2002 - Astrometry in Latin America'' Conference, Araraquara - Sao Paulo, 2 - 5 September 2002, to be published in ADeLA Publications Series, Vol.
openaire +2 more sources
Navigational utility of high-precision radio interferometer for Galileo's approach to Jupiter [PDF]
The effect of very long baseline interferometry (VLBI) measurements of 2-nanoradian (nrad) accuracy has been studied for use in Galileo's approach to Jupiter's moon Io.
Folkner, W. M.
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Approaching the event horizon: 1.3mm VLBI of SgrA*
, 2008 Advances in VLBI instrumentation now allow wideband recording that significantly increases the sensitivity of short wavelength VLBI observations. Observations of the super-massive black hole candidate at the center of the Milky Way, SgrA*, with short ...
Bower G C +9 more
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Optimal distribution of VLBI transmitters in the Galileo space segment for frame ties. [PDF]
Earth Planets Space, 2023 Wolf H, Böhm J.
europepmc +1 more source
Enhanced Stochastic Models for VLBI Invariant Point Estimation and Axis Offset Analysis
Remote SensingThe accuracy and stability of Very Long Baseline Interferometry (VLBI) systems are essential for maintaining global geodetic reference frames such as the International Terrestrial Reference Frame (ITRF). This study focuses on the precise determination of
Chang-Ki Hong, Tae-Suk Bae
doaj +1 more source
Eos, Transactions American Geophysical Union, 1983 The National Aeronautics and Space Administration (NASA) has agreed to transfer Mobile Very Long Baseline Interferometry (VLBI) equipment and operations to the National Oceanic and Atmospheric Administration (NOAA). NOAA will use these mobile systems to create and maintain a National Crustal Motion Network (NCMN) and to support NASA's Crustal Dynamics ...
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Extragalactic VLBI at 89 GHZ [PDF]
Symposium - International Astronomical Union, 1984 Radio interferometry at 89 GHz with transcontinental baselines can probe the region of active galaxies and quasars where collimation of relativistic outflows occur on length scales of 1017–18cm. Three experiments have been conducted recently to demonstrate the feasability and importance of this investigation.
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The Astrophysical JournalEarth-based very long baseline interferometry (VLBI) has made rapid advances in imaging black holes. However, due to the limitations imposed on terrestrial VLBI by the Earth’s finite size and turbulent atmosphere, it is imperative to have a space-based ...
Aditya Tamar +2 more
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European 4 Gbps VLBI and e-VLBI [PDF]
Proceedings of The 8th International e-VLBI Workshop — PoS(EXPReS09), 2009 Guifré Molera Calvés +3 more
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Prospects of Detecting a Jet in Sagittarius A* with Very-long-baseline Interferometry
The Astrophysical JournalEvent Horizon Telescope (EHT) images of the horizon-scale emission around the Galactic center supermassive black hole Sagittarius A* (Sgr A*) favor accretion flow models with a jet component. However, this jet has not been conclusively detected.
Erandi Chavez +5 more
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