The nature of a homogeneous sample of compact radio sources variable at 151 MHz

被引：0

作者：

Minns, AR ^{[1
]}

Riley, JM ^{[1
]}

Warner, PJ ^{[1
]}

Rioja, MJ ^{[1
]}

Rottgering, HJA ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Mullard Radio Astron Observ, Cambridge CB3 0HE, England

来源：

RADIO EMISSION FROM GALACTIC AND EXTRAGALACTIC COMPACT SOURCES | 1998年 / 144卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Global VLBI snapshot observations at 1.6 GHz (5 EVN + 4 VLBA) of a sample of low-frequency variable (LFV) radio sources found using the Cambridge Low Frequency Synthesis Telescope (CLFST) are presented. Variability at 151 MHz is almost certainly due to propagation effects in our Galaxy (e. g., refractive interstellar scintillation). Theory indicates that only sources with a significant fraction of their low-frequency Aux coming from components with angular sizes less than or similar to 30 mas will show such effects. This is confirmed by the VLBI images.

引用

页码：281 / 282

页数：2

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