Beckman, J.; Camps Fariña, A.; Zaragoza Cardiel, J.; Font, J.
Bibliographical reference
From Interstellar Clouds to Star-Forming Galaxies: Universal Processes?, Proceedings of the International Astronomical Union, IAU Symposium, Volume 315, article id. E7
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2016
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Description
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.