SCYON Abstract

Received on February 23 2012

A kinematic study of the giant star-forming region 30 Doradus

Authors	S. Torres-Flores (¹), R. Barbá (^1,2), J. Maíz Apellániz (³), M. Rubio (⁴), and G. Bosch (⁵)
Affiliation	(¹) Departamento de Física, Universidad de La Serena, Chile (²) ICATE-CONICET, San Juan, Argentina (³) Instituto de Astrofísica de Andalucía-CSIC, Spain (⁴) Departamento de Astronomía, Universidad de Chile, Chile (⁵) Facultad de Ciencias Astronómicas y Geofísicas, UNLP, Argentina
To appear in	Accepted for publication in the 54th Bulletin of the Argentine Astronomical Society (BAAA 54).
Contact	storres@dfuls.cl
URL	http://arxiv.org/abs/1202.2036
Links

Abstract

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 Halpha, [NII] 6548 A and [NII] 6584 A. By using this data set, we found that Halpha 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.