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Figure 2: Spectra of galactic and extragalactic continuum radio sources (from
Kraus, 1986).
4 Spectralline Radio Sources
An example of a thermal spectralline source showing many molecular lines
is given in Figure 3.
Examples of spectra of non-thermal maser line sources obtained in test
observations for the VERA (VLBI Exploration of Radio Astrometry) array
in Japan are shown in Figures 4, 5, and 6.
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