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Detection and measurement of expanding ionized shells around young star clusters

Part of: IAU Issue 315 - From Interstellar Clouds...

Published online by Cambridge University Press:  12 September 2016

John Beckman ,
Artemi Camps Fariña ,
Javier Zaragoza Cardiel  and
Joan Font
John Beckman
Affiliation:
Instituto de Astrofísica de Canarias, La Laguna, Spain; email: [email protected] Departamento de Astrofísica, Universidad de la Laguna, Spain Consejo Superior de Investigaciones Científicas, Spain
Artemi Camps Fariña
Affiliation:
Instituto de Astrofísica de Canarias, La Laguna, Spain; email: [email protected] Departamento de Astrofísica, Universidad de la Laguna, Spain
Javier Zaragoza Cardiel
Affiliation:
Instituto de Astrofísica de Canarias, La Laguna, Spain; email: [email protected] Departamento de Astrofísica, Universidad de la Laguna, Spain Instituto de Astronomía, UNAM, México D.F.
Joan Font
Affiliation:
Instituto de Astrofísica de Canarias, La Laguna, Spain; email: [email protected] Departamento de Astrofísica, Universidad de la Laguna, Spain
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Abstract

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We present a new method (BUBBLY) for detecting expanding components of ionized gas using integral field spectroscopy, showing its capabilities not only in detecting but also in obtaining the key physical parameters of the expanding shells: their expansion velocities and masses. The main advantages are that the detection is performed automatically via software and that we can derive most parameters of the shells, so it is suitable for detailed studies of feedback in nearby galaxies. The software can easily be configured to run on any data cube mapping an emission line over a spatial field. We also present results obtained by running BUBBLY on observations of Hα emission with the Fabry-Perot spectrograph GHαFaS: two sets of spectacular results at widely different spatial scales: the Antennae galaxies show multiple giant bubbles of size ~300pc around the brightest clusters, while inside a region in M33 we find three nested supernova remnants, with which we can study the feedback on the molecular gas surrounding the cluster.

Keywords

ISM: jets and outflowssupernova remnantsgalaxies: star clusters
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes? , August 2015 , E7
Copyright
Copyright © International Astronomical Union 2015 

References

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