Spectra and Variability of Sample of Polar Sourcesстатья
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Дата последнего поиска статьи во внешних источниках: 6 февраля 2014 г.
Аннотация:The results of 154 daily observations of 33 sources in the declination interval 70 - 84.5 deg. (J2000), made in 2009, are reported. Four objects are found to exhibit variations with typical time scales ranging from 8 to 30 days and modulation indices 2.1 - 5.6 %. The spectra of the variable components are obtained. The same sources were observed again after six months, in 2010, for a duration of up 55 to days. The 11.1 GHz flux density of one third of a sources varied by more than 10 % between the two data set.