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首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >Aligned Molecular Clouds towards SS 433 and L=348:5: Possible Evidence for a Galactic 'Vapor Trail' Created by a Relativistic Jet
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Aligned Molecular Clouds towards SS 433 and L=348:5: Possible Evidence for a Galactic 'Vapor Trail' Created by a Relativistic Jet

机译：对准SS 433和L = 348：5的分子云：相对论射流产生的银河“蒸气迹”的可能证据

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摘要

We carried out a detailed analysis of the NANTEN (CO)-C-12 (J = 1-0) dataset in two large areas towards SS 433 (l similar to 40 degrees) and l similar to 348:5. In SS 433, we detected ten clouds, which are well aligned nearly along the axis of an X-ray jet emanating from SS 433 at V-LSR = 42-56 km s(-1). The total length of the feature is similar to 300 pc, three-times longer than that of the X-ray jet, at 3 kpc. Towards l similar to 348:5, we detected four aligned clouds at V-LSR = -80-100 km s(-1), nearly perpendicular to the Galactic plane. The total length of the feature is similar to 400 pc at 6 kpc. In both cases, the CO clouds are distributed at vertical bar b vertical bar similar to 1 degrees-5 degrees and their alignments and coincidence in velocity should be rare, Suggesting that they are physically associated. We present a scenario to explain these aligned clouds in which the interaction between a relativistic jet and the interstellar medium induced molecular cloud formation over the last similar to 10(5-6) yr. It is suggested that the timescale of the relativistic jet may be considerably larger, on the order of 10(5-6) yr, than previously thought in SS 433. The driving engine of the jet is obviously SS 433, itself, in SS 433, although the engine is not yet identified in l similar to 348:5 among possible several candidates detected in X-rays and TeV gamma rays.
机译：我们在朝向SS 433的两个大区域（l相似于40度）和l相似于348：5的两个区域进行了NANTEN（CO）-C-12（J = 1-0）数据集的详细分析。在SS 433中，我们检测到十个云，它们几乎沿着从SS 433发出的X射线射流的轴在V-LSR = 42-56 km s（-1）时很好地对齐。该功能的总长度约为300 pc，比X射线射流的3 kpc长三倍。向类似于348：5的l方向，我们在V-LSR = -80-100 km s（-1）处检测到四个对齐的云，几乎垂直于银河平面。该功能的总长度类似于6 kpc时的400 pc。在这两种情况下，CO云团都分布在垂直杆b垂直杆上，类似于1度至5度，并且它们的排列和速度重合应该很少，这表明它们是物理相关的。我们提出一个方案来解释这些对齐的云，其中相对论射流和星际介质之间的相互作用在最后一个类似于10（5-6）年的过程中诱导了分子云的形成。建议相对论射流的时间尺度可能比SS 433先前认为的大很多，大约10（5-6）年。射流的驱动引擎显然是SS 433，本身就是SS 433 ，尽管在X射线和TeV伽马射线中检测到的几种可能候选物中，发动机仍未以类似于348：5的比例被识别出来。

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