Johnston, KG orcid.org/0000-0003-4509-1180, Beuther, H, Linz, H et al. (5 more authors) (2014) The Interplay Between Molecular and Ionised Gas Surrounding the Massive Embedded Star AFGL 4176. In: Stamatellos, D, Goodwin, S and Ward-Thompson, D, (eds.) Astrophysics and Space Science Proceedings. The Labyrinth of Star Formation, 18-22 Jun 2012, Crete, Greece. Springer , pp. 413-414. ISBN 978-3-319-03040-1
Abstract
In order to investigate whether the feedback produced by photo-ionisation has an important effect on the geometry of the circumstellar dust and gas around forming massive stars, we have observed the luminous southern embedded star AFGL 4176 in transitions of NH3 and the hydrogen recombination line H68α. We present our preliminary results, which show a compact Hii region embedded in a parsec-scale (radius ∼ 0.7 pc) rotating envelope/torus. In addition, the Hii region is found to be offset from the centre of the envelope, and the velocity gradient in the ionised gas is not aligned with the rotation axis of the envelope, suggesting complex dynamics and multiplicity.
Metadata
Item Type: | Proceedings Paper |
---|---|
Authors/Creators: |
|
Editors: |
|
Copyright, Publisher and Additional Information: | © 2014, Springer International Publishing Switzerland. This is a post-peer-review, pre-copyedit version of an article published in Astrophysics and Space Science Proceedings. The final authenticated version is available online at: https://doi.org/10.1007/978-3-319-03041-8_80. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Velocity Gradient; Massive Star; Recombination Line; Hyperfine Component; Ionise Outflow |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Astrophysics (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 08 Feb 2019 16:52 |
Last Modified: | 08 Feb 2019 16:52 |
Status: | Published |
Publisher: | Springer |
Identification Number: | 10.1007/978-3-319-03041-8_80 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:138438 |