| Issue |
EPJ Web of Conferences
Volume 19, 2012
Assembling the Puzzle of the Milky Way
|
|
|---|---|---|
| Article Number | 08006 | |
| Number of page(s) | 3 | |
| Section | How Stars and Interstellar Medium interplay? ISM Large Scale Structure, Stellar Formation, Gas Infall, Galactic Fountains, . . . | |
| DOI | https://doi.org/10.1051/epjconf/20121908006 | |
| Published online | 07 February 2012 | |
https://doi.org/10.1051/epjconf/20121908006
The interplay between the young stellar super cluster Westerlund 1, and the surrounding interstellar medium
1 INAOE, Mexico
2 Univ. de Chile, Chile
a e-mail: ydm@inaoep.mx
We analyze the multi-band (CO, HI and Spitzer maps), large-scale (150 pc) gaseous structure around Westerlund 1, the most massive known superstar cluster in the Milky Way, with the intention of exploring the effect of feedback from massive stars in this young (age < 5 Myr) cluster on the surrounding interstellar medium. We find no traces of the parental molecular cloud in the immediate vicinity of the cluster, instead this volume is partially filled by HI gas. On the other hand, there are two giant molecular clouds, both moving away from the cluster at 5–10 km s−1, at distances of around 50–150 pc. There are several ultra-compact HII regions associated with these giant molecular clouds. All these events suggest that the cluster has played an important role in re-structuring the ISM, in the form of ejecting the molecular gas, as well as triggering secondary star formation.
© Owned by the authors, published by EDP Sciences, 2012
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.