用EVN在Seyfert星系中发现更多致密射电核
More discoveries of compact radio cores in Seyfert galaxies with the EVN
摘要：
继EVN观测局部塞弗特星系中心区域的高检测率之后（Giroletti & Panessa 2009，ApJL 706，260），我们从一个完整的样本中瞄准了一些额外的源。我们已经检测到三个源（NGC 3982，NGC 3227和NGC 4138）在1.6和5 GHz，目前的初步结果。此外，源的衰减适合于将Arecibo包括在EVN观测中，这为发射区域的紧凑性提供了重要线索。
英文摘要：
Following the high detection rate achieved by EVN observations of the central regions of local Seyfert galaxies (Giroletti & Panessa 2009, ApJL 706, 260), we have targeted a few additional sources from a complete sample. We have detected three more sources (NGC 3982, NGC 3227, and NGC 4138) at both 1.6 and 5 GHz and present preliminary results. Moreover, the declination of the sources was suitable to include Arecibo in the EVN observations, which provides important clues on the compactness of the emission region.
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