Results 101 to 110 of about 27,390 (189)
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
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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.
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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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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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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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On the Integration of VLBI Observations to GENESIS into Global VGOS Operations
Remote SensingThe upcoming European Space Agency (ESA) satellite mission GENESIS is an Earth-orbiting satellite carrying instruments of all four space geodetic techniques.
David Schunck +2 more
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e-VLBI Technology in VLBI Network "Quasar" [PDF]
Proceedings of The 8th International e-VLBI Workshop — PoS(EXPReS09), 2009 Alexandre Salnikov +7 more
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VLBI Activities in Japan and a Projected Space-VLBI Program [PDF]
Symposium - International Astronomical Union, 1988 There are three institutes in Japan that are equipped with VLBI facilities. Of these, Nobeyama Radio Observatory started VLBI experiments with astrophysical and astrometric interests. The Institute of Space and Astronautical Science, the Nobeyama Radio Observatory, and the Radio Research Laboratory collaborated with JPL and other institutions for this ...
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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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