Dual-Frequency Synthesis VLBI Observations of 3C84 at 18 cm wavelength
- 1 January 1991
- journal article
- vlbi imaging
- Published by Cambridge University Press (CUP) in International Astronomical Union Colloquium
- Vol. 131, 334-337
- https://doi.org/10.1017/s0252921100013580
Abstract
We present results of a multi-frequency synthesis VLBI experiment which employed observations at 1622 and 1707 MHz. Combining data from two frequencies gave a factor ∼2 improvement in dynamic range over the single frequency images. We estimate map fidelity by comparing the images made separately from each frequency; while the dynamic range is ∼1800, the fidelity index is only ∼5.Keywords
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