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

Published online by Cambridge University Press:  09 February 2015

Sergio Torres-Flores
Affiliation:
Departamento de Física, Universidad de La Serena, Av. Cisternas 1200 Norte, La Serena, Chile email: storres@dfuls.cl
Rodolfo Barbá
Affiliation:
Departamento de Física, Universidad de La Serena, Av. Cisternas 1200 Norte, La Serena, Chile email: storres@dfuls.cl
Jesús Maíz Apellániz
Affiliation:
Centro de Astrobiología (INTA-CSIC), ESAC campus, P.O. Box 78, 28691 Villanueva de la Cañada, Madrid, Spain
Mónica Rubio
Affiliation:
Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile
Guillermo Bosch
Affiliation:
Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de la La Plata, Paseo del Bosque s/n, 1900 La Plata, Argentina
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Abstract

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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 Hα 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 Hα profile of this complex, which displays a width (σ) of about 12 km s−1 (corrected by instrumental and thermal width). We find that a single Gaussian fit on the integrated Hα 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.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2015 

References

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