SURVEY OF THE SOUTHERN GALACTIC PLANE AND MAGELLANIC CLOUDS D. RUSSEIL, Y.M. GEORGELIN, P. AMRAM, Y.P. GEORGELIN, A. LAVAL, M. MARCELIN, PASA, 15 (1), 9
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Next Section: Introduction
THE MARSEILLE OBSERVATORY H
SURVEY OF THE SOUTHERN GALACTIC PLANE AND MAGELLANIC CLOUDS
D. RUSSEIL
Y.M. GEORGELIN
P. AMRAM
Y.P. GEORGELIN
A. LAVAL
M. MARCELIN
OBSERVATOIRE DE MARSEILLE, 2 PLACE LE VERRIER, MARSEILLE, FRANCE, 13248 cedex 4
russeil@obmara.cnrs-mrs.fr,ymgeorgelin@obmara.cnrs-mrs.fr, amram@obmara.cnrs-mrs.fr,ypgeorgelin@obmara.cnrs-mrs.fr, laval@obmara.cnrs-mrs.fr,marcelin@obmara.cnrs-mrs.fr
Abstract:
The ionized gas regions, which are the main tracers of the spiral arms, can be used for the study and determination of the spiral structure of our Galaxy. Towards this goal, the Marseille Observatory elaborated and developed an instrument, using a scanning Fabry-Perot interferometer, particularly suited for the observation of extended objects. The survey of the southern Galactic plane then started at the beginning of 1990. The major instrumental aim is to obtain the spectral information, and therefore the ionized gas kinematics, in each pixel of the observed fields. Already 300 fields of 38'X38' have been observed in H with a spatial resolution of 9" X 9", covering almost the entire fourth quadrant of the Galactic plane, detecting numerous discrete HII regions and the diffuse emission which is widely distributed. Also, the Magellanic Clouds are studied using the same instrument.
Keywords: ISM: HII regions, supernovae remnants, kinematics and dynamics --Galaxy: structure --Galaxies: individual (Large Magellanic Cloud, Small Magellanic Cloud)
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