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arxiv: 1505.02793 · v1 · pith:OWRFL72Wnew · submitted 2015-05-11 · 🌌 astro-ph.GA

A kinematic analysis of the Giant star-forming Region of N11

classification 🌌 astro-ph.GA
keywords alphaemissionfindgaussianregioncomplexdatafitted
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In this work we present high resolution spectroscopic data of the giant star-forming region of N11, obtained with the GIRAFFE instrument at the Very Large Telescope. By using this data set, we find that most of the H$\alpha$ emission lines profiles in this complex can be fitted by a single Gaussian, however, multiple emission line profiles can be observed in the central region of N11. By adding all the spectra, we derive the integrated H$\alpha$ profile of this complex, which displays a width ($\sigma$) of about 12 km s$^{-1}$ (corrected by instrumental and thermal width). We find that a single Gaussian fit on the integrated H$\alpha$ profile leaves remaining wings, which can be fitted by a secondary broad Gaussian component. In addition, we find high velocity features, which spatially correlate with soft diffuse X-ray emission.

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