Results 101 to 110 of about 15,217 (172)

Expanding New Zealand VLBI capability and the 30m dish

, 2014
We describe our current VLBI activities with the 12m dish; but also with the conversion of a former 100-foot (30-m) telecommunication antenna in New Zealand into a radio telescope show the future capabilities. Provide a brief of the specifications of the
Weston, S
core  

Effects of Earth’s Oblateness on Black Hole Imaging through Earth–Space and Space–Space Very Long Baseline Interferometry

The Astrophysical Journal
Earth-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, Ben Hudson, Daniel C. M. Palumbo   +2 more
doaj   +1 more source

Enhanced Stochastic Models for VLBI Invariant Point Estimation and Axis Offset Analysis

Remote Sensing
The 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

AUA047: Students at TU Wien Organize Their own VLBI Session

, 2019
At Technische Universit¨at Wien (TU Wien) students had the chance to fully organize the official IVS session AUA047. We will give an overview of the individual parts of this course, including, scheduling, large-scale Monte Carlo simulations, an ...
Hankey, Warren, Wolf, Helene, Schartner, Matthias, Böhm, Johannes, Gruber, Jakob, McCallum, Jamie, McCallum, Lucia   +6 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, Jan Wagner, Jouko Ritakari, Ari Mujunen   +3 more
openaire   +1 more source

VSOP Space VLBI and Geodetic VLBI Investigations of Southern Hemisphere Radio Sources

The Astrophysical Journal Supplement Series, 2002
Abstract not available.
Tingay, Steven J., Reynolds, John E., Tzioumis, Anastasios K., Jauncey, David L., Lovell, James E., Dodson, R. G., Costa, M. E., McCulloch, Peter M., Edwards, Philip G., Hirabayashi, Hisashi, Murphy, David W., Preston, Robert A., Piner, B. Glenn, Nicolson, G. D., Quick, J. F. H., Kobayashi, Hideyuki, Shibata, Kazunari M.   +16 more
openaire   +2 more sources

A VLBI receiving system for the South Pole Telescope

, 2018
The Event Horizon Telescope (EHT) is a very-long-baseline interferometry (VLBI) experiment that aims to observe supermassive black holes with an angular resolution that is comparable to the event horizon scale.
Laura Vertatschitsch, Reiland, George, Young, Andre, Evan Mayer, Antony A. Stark, Junhan Kim, Vertatschitsch, Laura, Sheperd S. Doeleman, Thomas W. Folkers, Carlstrom, John E., Kyle D. Massingill, Stark, Antony A., David Forbes, George Reiland, Jonathan Weintroub, Greer, Christopher H., Kim, Junhan, Jason SooHoo, Massingill, Kyle D., Weintroub, Jonathan, Lauria, Eugene F., Doeleman, Sheperd S., Beaudoin, Christopher, Christopher Beaudoin, Mayer, Evan, Chi H. Nguyen, Andre Young, Christopher H. Greer, Daniel P. Marrone, Eugene F. Lauria, Nguyen, Chi H., Marrone, Daniel P., Forbes, David, Folkers, Thomas W., John E. Carlstrom, SooHoo, Jason, Lauria, E.F., Stark, A.A., Carlstrom, J.E., Vertatschitsch, L., Beaudoin, C., Mayer, E., Nguyen, C.H., Forbes, D., Soohoo, J., Reiland, G., Marrone, D.P., Weintroub, J., Young, A., Massingill, K.D., Doeleman, S.S., Folkers, T.W., Greer, C.H.   +52 more
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Haystack Observatory VLBI Correlator [PDF]

, 2013
This report summarizes the activities of the Haystack Correlator during 2012. Highlights include finding a solution to the DiFX InfiniBand timeout problem and other DiFX software development, conducting a DBE comparison test following the First ...
Niell, Arthur, Corey, Brian, Titus, Mike, Dudevoir, Kevin, Whitney, Alan, Cappallo, Roger   +5 more
core  

VLBI Measurements for Frequency Transfer [PDF]

, 2009
We carried out the intercomparison experiments between VLBI, GPS and DMTD to show the VLBI can measure the right time difference. We produced the artificial change using by line stretcher. At the artificial change part, VLBI and DMTD show good agreement,
Yasuhiro Koyama, Ichikawa, R, Mizuhiko Hosokawa, Hobiger, T, Takiguchi, H, Hiroshi Takiguchi, Ryuichi Ichikawa, Hosokawa, M, Atsutoshi Ishii, Thomas Hobiger, Koyama, Y, Tadahiro Gotoh, Ishii, A, Gotoh, T   +13 more
core   +2 more sources

e-VLBI Technology in VLBI Network "Quasar" [PDF]

Proceedings of The 8th International e-VLBI Workshop — PoS(EXPReS09), 2009
Alexandre Salnikov, Andrey Finkelstein, Alexander Ipatov, Michael Kaidanovsky, Ilia Bezrukov, Andrey Mikhailov, Igor Surkis, Elena Skurikhina   +7 more
openaire   +1 more source