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Hα Survey of the Large Magellanic Cloud

Published online by Cambridge University Press:  12 April 2016

A. Laval ,
E. le Coarer ,
Y.P. Georgelin ,
M. Marcelin ,
P. Amram ,
G. Goldes ,
G. Carranza  and
M. Rosado
A. Laval
Affiliation:
Observatoire de Marseille, France
E. le Coarer
Affiliation:
Observatoire de Marseille, France
Y.P. Georgelin
Affiliation:
Observatoire de Marseille, France
M. Marcelin
Affiliation:
Observatoire de Marseille, France
P. Amram
Affiliation:
Observatoire de Marseille, France
G. Goldes
Affiliation:
Observatorio Astronomico de Cordoba, Argentina
G. Carranza
Affiliation:
Observatorio Astronomico de Cordoba, Argentina
M. Rosado
Affiliation:
Instituto de Astronomia, U.N.A.M., Mexico

Abstract

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The LMC is being surveyed in the Hα emission line with a scanning Fabry-Perot interferometer, attached to the 36 cm telescope of the Observatoire de Marseille. The present results concern the kinematical mapping of bright nebulae; it shows that the kinetic energy involved in the gas motion is closely related to the evolutionary stage of the embedded stars. In particular, in the 30 Dor nebula, a few one-peaked line profiles remain at the boundaries of the shells, among the numerous split areas. The 50-100 pc shells exhibit a relatively usual spherical expansion, with velocities in the same range at the boundaries. On the contrary, the 10-20 pc shells of the central core show different velocities of the one-peak sides of the shells.

Type
2. The Fabry-Perot Spectrometer and its Applications
Information
International Astronomical Union Colloquium , Volume 149: Tridimensional Optical Spectroscopic Methods in Astrophysics , 1995 , pp. 155 - 159
Copyright
Copyright © Astronomical Society of the Pacific 1995

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