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首页> 外文期刊>The Astrophysical journal >PROBING WOLF–RAYET WINDS: CHANDRA/HETG X-RAY SPECTRA OF WR 6
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PROBING WOLF–RAYET WINDS: CHANDRA/HETG X-RAY SPECTRA OF WR 6

机译:探测狼的风:WR 6的CHANDRA / HETG X射线光谱

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摘要

With a deep Chandra/HETGS exposure of WR 6, we have resolved emission lines whose profiles show that the X-rays originate from a uniformly expanding spherical wind of high X-ray-continuum optical depth. The presence of strong helium-like forbidden lines places the source of X-ray emission at tens to hundreds of stellar radii from the photosphere. Variability was present in X-rays and simultaneous optical photometry, but neither were correlated with the known period of the system or with each other. An enhanced abundance of sodium revealed nuclear-processed material, a quantity related to the evolutionary state of the star. The characterization of the extent and nature of the hot plasma in WR 6 will help to pave the way to a more fundamental theoretical understanding of the winds and evolution of massive stars.
机译:在WR 6的Chandra / HETGS深度曝光下,我们已经解析了发射线,其轮廓表明X射线源自具有高X射线连续光学深度的均匀扩展的球形风。像氦一样的强禁线的存在将X射线的辐射源置于光球的数十至数百个恒星半径。 X射线和同时进行的光学测光法均存在变异性,但两者均与系统的已知周期或彼此无关。钠含量的增加揭示了核处理过的物质,该物质与恒星的演化状态有关。 WR 6中热等离子体的范围和性质的表征将有助于为对风和大质量恒星演化的更基本的理论理解铺平道路。

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