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Studies of weak compact radio sources
Authors:S. A. Tyul’bashev  O. I. Malov
Affiliation:(1) Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Institute of Physics, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 117924, Russia
Abstract:Approximately 20% of weak sources in a scintillation survey at 102 MHz were not identified in other, more sensitive, low-frequency surveys. These sources had very high compactness and steep spectra. Since, as shown earlier, these sources are probably quasars, the epoch of the radio birth of quasars should correspond to flux densities of ~0.01 Jy.
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