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Kinematics of F to M Supergiants in the 30 Dor and Shapley II Regions of the Large Magellanic Cloud

Published online by Cambridge University Press:  25 May 2016

E. Maurice ,
N. Martin ,
G. Testor  and
M. C. Lortet
E. Maurice
Affiliation:
Observatoire de Marseille 2, Place Le Verrier F-13248 Marseille Cedex 04, France
N. Martin
Affiliation:
Observatoire de Marseille 2, Place Le Verrier F-13248 Marseille Cedex 04, France
G. Testor
Affiliation:
Observatoire de Meudon, DAEC, F-92195 Meudon Cedex, France
M. C. Lortet
Affiliation:
Observatoire de Meudon, DAEC, F-92195 Meudon Cedex, France

Abstract

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Accurate radial velocities have been obtained with the CORAVEL photoelectric scanner at ESO, La Silla, for 36 F-M supergiants in the 30 Dor and Shapley II regions of the LMC (5h20m < RA(2000) < 5h50m, −70°09′ < Dec (2000) < −68°30′). On the basis of these data, we revisit the content and spatial extent of the four kinematical groups of F-M supergiants discovered in this area by Prévot et al. 1989. Each is the oldest part of a larger star forming region, recognized by young HII regions or CO clouds, and/or a surrounding Hα + [NII] superbubble. We discuss various gas tracers including the interstellar sodium and calcium lines.

Type
Part 5. Stellar Populations and Surveys
Information
Symposium - International Astronomical Union , Volume 190: New Views of the Magellanic Clouds , 1999 , pp. 389 - 390
Copyright
Copyright © Astronomical Society of the Pacific 1999 

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