Monitoring of flux densities of bright radio sources in a narrow strip of sky at 1420 MHz |
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| Authors: | V. I. Zhuravlev M. V. Popov V. A. Soglasnov V. V. Oreshko |
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| Affiliation: | (1) Astro Space Center, Lebedev Physical Institute, Russian Academy of Sciences, Profsoyuznaya ul. 84/32, Moscow, 117997, Russia;(2) Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute, Russian Academy of Sciences, Pushchino, Moscow oblast, 142290, Russia |
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| Abstract: | The flux densities of a uniform sample of extragalactic radio sources in a narrow strip of sky (1° wide in declination with a total area of about 0.1 sr) were monitored for 105 days at 1420 MHz using the 64-m Kalyazin radio telescope. In total, 32 bright sources with flux densities greater than 0.6 Jy have been studied. The statistical properties of the observed flux-density variations are discussed. We detected variability at the 95% confidence level according to the χ 2 test in 4C +27.15 (0516+2740). The flux density variations in this source show the pattern typical of extreme scattering events. There are reasons to classify this source as a blazar. |
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