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

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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Bibliographic Details
Main Authors: Libert, Y. (Author), Gerard, E. (Author), Le Bertre, T. (Author), Johnson, M. C. (Contributor), Dame, T. M. (Author), Matthews, Lynn D. (Contributor)
Other Authors: Haystack Observatory (Contributor)
Format: Article
Language:English
Published: IOP Publishing, 2015-01-15T16:22:11Z.
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