Results 41 to 50 of about 27,737 (204)
Journal of The Korean Astronomical Society, 2008 We review VLBI observations of supernovae over the last quarter century and discuss the prospect of imaging future supernovae with space VLBI in the context of VSOP-2. From thousands of discovered supernovae, most of them at cosmological distances, ~50 have been detected at radio wavelengths, most of them in relatively nearby galaxies. All of the radio
openaire +4 more sources
Proceedings of 8th European VLBI Network Symposium — PoS(8thEVN), 2007 Systematic surveys of astronomical objects often lead to discoveries, but always provide invaluable information for statistical studies of well-defined samples. They also promote follow-up investigations of individual objects or classes. Surveys using a yet unexplored observing wavelength, a novel technique or a new instrument are of special importance.
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Simultaneous radio-interferometric and high-energy TeV observations of the gamma-ray blazar Mkn 421
, 2006 The TeV-emitting BL Lac object Mkn 421 was observed with very long baseline interferometry (VLBI) at three closely-spaced epochs one-month apart in March-April 1998.
Aharonian +57 more
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New Astronomy Reviews, 1999 6 pages, 3 figures, accepted by New Astronomy Reviews, EVN/JIVE Symposium Special ...
Garrett, M. A. +4 more
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An Experiment on Radio Location of Objects in the Near-Earth Space with VLBI in 2012
Open Astronomy, 2013 An experiment on radar location of space debris objects using of the method of VLBI was carried out in April, 2012. The radar VLBI experiment consisted in irradiation of some space debris objects (4 rocket stages and 5 inactive satellites) with a signal ...
Nechaeva M. +20 more
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Effects of Surface Errors of Antennas on Detection Performance of Space VLBI
Aerospace, 2022 This work investigates the effects of the surface errors of the satellite antenna on the detection performance of the space VLBI system. First, the relationship between the surface errors and the antenna gain loss is analyzed, and then the influence of ...
Yangyang Zhang, Huijie Liu, Xingfu Liu
doaj +1 more source
First e-VLBI observations of GRS 1915+105
, 2006 We present results from the first successful open call e-VLBI science run, observing the X-ray binary GRS 1915+105. e-VLBI science allows the rapid production of VLBI radio maps, within hours of an observation rather than weeks, facilitating a decision ...
Campbell, R. M. +12 more
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Evaluate the Prediction Level of Polar Motion Interpolation for 6 hr in Ideal and Real Environments
Earth and Space Science, Volume 13, Issue 1, January 2026.Abstract With the increasing demands for global development, deep space exploration missions are taking place more frequently, rendering the traditional 24‐hr Polar Motion (PM) predictions inadequate for supporting the frequent operations of spacecraft.
Wei Miao, Xueqing Xu, Yonghong Zhou
wiley +1 more source
РАДИОСТРУКТУРА ИСТОЧНИКА 1803÷784
Odessa Astronomical Publications, 2011 Results of processing of data of ground-space VLBI experiment titled V053 are presented. These observations were made in 1997 October with 10 antennas of American interferometer VLBA and with Japan space telescope VSOP (VLBI Space Orbit Program).
A. А. Чуприков
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1.3 mm Wavelength VLBI of Sagittarius A*: Detection of Time-Variable Emission on Event Horizon Scales [PDF]
, 2010 Sagittarius A*, the ~4 x 10^6 solar mass black hole candidate at the Galactic Center, can be studied on Schwarzschild radius scales with (sub)millimeter wavelength Very Long Baseline Interferometry (VLBI).
Beaudoin, Christopher +29 more
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