Study of compact radio sources using interplanetary scintillations at 111 MHz. Strong gigahertz-peaked spectrum sources

被引：0
|
作者：
S. A. Tyul’bashev
P. A. Chernikov
机构：
[1] Russian Academy of Sciences,Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Institute of Physics
来源：
Astronomy Reports | 2009年 / 53卷
关键词：
98.70.Dk; 95.85.Bh;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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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页码：310 / 318
页数：8
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