Results 161 to 170 of about 5,368 (195)

Very Long Baseline Interferometry

1997
The practice of Very Long Baseline Interferometry (VLBI) has undergone a great deal of development since the first demonstrations of the technique in 1967. High quality images including spectroscopy and polarimetry are now routinely produced for a variety of high brightness radio sources.
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Very long baseline interferometry

Radio Science, 1986
A general review is given of very long baseline interferometry, touching on basic principles and applications, current instrumentation, organization and future developments. Some astronomical high‐lights are discussed.
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Very Long Baseline Interferometry

2018
This chapter describes the theory and the individual operational steps and components needed to carry out geodetic and astrometric Very Long Baseline Interferometry (VLBI) measurements. Pairs of radio telescopes are employed to observe far distant compact radio galaxies for the determination of the differences of the arrival times at the telescopes ...
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Polarization considerations for long baseline interferometry

SPIE Proceedings, 2014
In building long baseline interferometers with many fold mirrors, the wavefront quality, reflectivity loss, and relative dispersion are not the only issues a designer must contend with. The polarization effects from fold mirrors on light can significantly reduce fringe visibility. However, recognizing a mirror’s polarization effects early can influence
Jason Mudge, Benjamin Johnson, Chad Ogden   +2 more
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Strehl ratio and visibility in long-baseline stellar interferometry

Optics Letters, 1995
The relationship between Strehl ratio (S), the parameter most often used by those in the adaptive optics field, and visibility (V), the parameter of most interest to those working in interferometry, is investigated. It is found that if the atmospheric turbulence is assumed to be Kolmogorov, V approximately S for high Strehl ratios. At low Strehl ratios,
T A, Brummelaar, W G, Bagnuolo, S T, Ridgway   +2 more
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Long-Baseline Interferometry

Science, 1972
A E, Rogers, P, Morrison
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Seven Be stars resolved by optical long-baseline interferometry

Symposium - International Astronomical Union, 1994
The recent progress in optical interferometry has made the direct study of the circumstellar matter around Be stars possible. The Hα emission region around γ Cas has been resolved with the I2T (Thom et al. 1986), GI2T (Mourard et al. 1989) and MkIII (Quirrenbach et al.
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Very Long Baseline Interferometry

2023
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Very long baseline interferometry with the SKA

2014
Aerospace ...
Paragi, Z. (author), Godfrey, L. (author), Gurvits, L. (author), et al (author)   +3 more
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Space very long baseline interferometry in China

Advances in Space Research, 2020
Zhongli Zhang, Zhen-Ya Zheng, Tao An
exaly