MERLIN和VLBA对天鹅座X-3的观测

Vistas in Astronomy Pub Date : 1997-01-01 DOI:10.1016/S0083-6656(96)00063-3

S.J. Newell , R.E. Spencer , M.A. Garrett

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引用次数: 1

摘要

我们介绍了利用MERLIN和VLBA对x射线双星(XRB)天鹅座X-3进行无线电测绘活动的新结果。这产生了两个显著的结果。首先，在1995年6月的静止阶段，使用MERLIN在5千兆赫波段进行的观测显示，与明亮核心相关的N和S射电瓣的存在。这些叶瓣的位置角度和分离与该源的大规模射流的观点一致。其次，在15ghz波段的VLBA观测显示，在一个小尺度的耀斑期间，源以明显的超光速膨胀。这种膨胀之后是一段时间的明显收缩，速度与光速相似。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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MERLIN and VLBA observations of Cygnus X-3

We present new results from a radio mapping campaign on the X-ray binary (XRB), Cygnus X-3 using both MERLIN and the VLBA. This has produced two significant results. Firstly, observations using MERLIN at 5 GHz during a quiescent phase in June 1995 showed the presence of N and S radio lobes associated with a bright core. The position angle and separation of these lobes are consistent with the idea of a large scale jet in this source. Secondly, observations with the VLBA at 15 GHz during a period of small scale flaring have shown the source to be expanding at apparently superluminal velocities. This expansion was then followed by a period of apparent contraction with similar superluminal speeds.

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