Sergio Torres-Flores, Rodolfo Barbá, Jesús Maíz Apellániz, Mónica Rubio, Guillermo Bosch
We present, for the first time, an optical spectroscopic data cube of the
giant star-forming region 30 Doradus, obtained with the GIRAFFE on the VLT at
Paranal Observatory. The main emission lines present in this data cube
correspond to H{\alpha}, [NII] 6548 {\AA} and [NII] 6584 {\AA}. By using this
data set, we found that H{\alpha} presents from simple to multiple profiles,
which suggests that different physical mechanisms act in different ways on the
excited gas in 30 Doradus. We found, at least, three unclassified large
expanding structures. These structures correlate with peaks in the X-ray
distribution. Given the excellent signal-to-noise ratio and the large spatial
coverage of this data cube, we have studied in detail the kinematics of 30
Doradus, showing the importance of the small scale phenomena on the integrated
properties of 30 Doradus.
View original:
http://arxiv.org/abs/1202.2036
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