Study of compact radio sources using interplanetary scintillations at 111 MHz. Strong gigahertz-peaked spectrum sources |
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| Authors: | S. A. Tyul’bashev P. A. Chernikov |
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| Affiliation: | (1) Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Institute of Physics, Russian Academy of Sciences, Pushchino, Moscow oblast, 142290, Russia |
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| Abstract: | Observations of a sample of gigahertz-peaked spectrum sources have been carried out using the interplanetary-scintillation method. Scintillations were recorded in six of 53 observed sources; upper estimates for the flux density of the compact emission were obtained for the remaining sources. The contribution of a halo to the integrated flux at low frequencies is considered. Three sources with spectral indices close to ?2.5 below the spectral cutoff have been found. The synchrotron self-absorption of emission in the studied sources is discussed. |
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