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The Very Long Baseline Array

Published online by Cambridge University Press:  03 August 2017

Jonathan D. Romney
Jonathan D. Romney*
Affiliation:
National Radio Astronomy Observatory, Edgemont Road, Charlottesville VA 22903-2475

Abstract

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The Very Long Baseline Array (VLBA) will be the world's first large-scale dedicated VLBI facility. It is planned as a multipurpose instrument, supporting continuum, spectroscopic, astrometric/geodetic, multi-frequency, bandwidth synthesis, polarization, and pulsar measurements – with a variety of bandwidths, sampling rates, quantization schemes, and multi-band modes. The Array will consist of ten new 25-m precision antennas, in an optimized geographical configuration. Extremely low-noise receivers will support observations with dual polarization in nine frequency bands from 330 MHz to 43 GHz, including almost all conventional VLBI bands. A wideband, high-density recording system will allow unattended operation at a sustained data rate of 128 Mbit/s for 24 hours, and peak rates up to 512 Mbit/s. The VLBA correlator, planned as a 20-station system to support processing of all observations involving the Array, will be by far the largest ever built for VLBI. The Array will be operated remotely, from a new operations and data-reduction center to be built in Socorro, NM.

Type
Instrumentation and Analysis
Information
Symposium - International Astronomical Union , Volume 129: The Impact of VLBI on Astrophysics and Geophysics , 1988 , pp. 461 - 468
Copyright
Copyright © Reidel 1988 

References

Chikada, Y., et al., 1984, in Indirect Imaging, ed. Roberts, J. A., Cambridge University Press, p. 387.Google Scholar
Kellermann, K. I., and Thompson, A. R., 1985, Science, 229, 123.Google Scholar
Webber, J. C., and Hinteregger, H. F., 1987, this Symposium.Google Scholar
Weinreb, S., Norrod, R., and Pospieszalski, M., 1987, this Symposium.Google Scholar