H I observations of the asymptotic giant branch star X Herculis: Discovery of an extended circumstellar wake superposed on a compact high-velocity cloud

We report H I 21 cm line observations of the asymptotic giant branch (AGB) star X Her obtained with the Robert C. Byrd Green Bank Telescope (GBT) and the Very Large Array. We have unambiguously detected H I emission associated with the circumstellar envelope of the star, with a mass totaling M[subsc...

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Main Authors: Libert, Y., Gerard, E., Le Bertre, T., Johnson, M. C., Dame, T. M., Matthews, Lynn D.
其他作者: Haystack Observatory
格式: 文件
语言:en_US
出版: IOP Publishing 2015
在线阅读:http://hdl.handle.net/1721.1/92879