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Deep Hα Survey of the Milky Way

Published online by Cambridge University Press:  12 April 2016

M. Marcelin ,
Y.M. Georgelin ,
P. Amram ,
Y.P. Georgelin  and
E. le Coarer
M. Marcelin
Affiliation:
Observatoire de Marseille, 2 Place Le Verrier, 13248 Marseille Cedex 4, France
Y.M. Georgelin
Affiliation:
Observatoire de Marseille, 2 Place Le Verrier, 13248 Marseille Cedex 4, France
P. Amram
Affiliation:
Observatoire de Marseille, 2 Place Le Verrier, 13248 Marseille Cedex 4, France
Y.P. Georgelin
Affiliation:
Observatoire de Marseille, 2 Place Le Verrier, 13248 Marseille Cedex 4, France
E. le Coarer
Affiliation:
Observatoire de Marseille, 2 Place Le Verrier, 13248 Marseille Cedex 4, France

Abstract

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An Hα Survey of the Milky Way is being led at La Silla with a small telescope equipped with a scanning Fabry-Perot interferometer and IPCS. This Survey gives detailed Hα maps with a 9” spatial resolution and radial velocity maps with a 5km/s resolution. About 200 fields (38’×38’) have been already observed along the galactic plane. They furnish mosaics ranging from galactic longitude 234° to 350°. Combined with distances of exciting stars and radio data our kinematic data of the ionized gas enable to draw precisely the spiral arms of our Galaxy. Examples of the results obtained are given for galactic longitudes 234°, 283°, 290°, 298°, 328° and 338°.

Information

Type
2. The Fabry-Perot Spectrometer and its Applications
Information
International Astronomical Union Colloquium , Volume 149: Tridimensional Optical Spectroscopic Methods in Astrophysics , 1995 , pp. 160 - 164
Copyright
Copyright © Astronomical Society of the Pacific 1995

References

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