Marseille Observatory Hα survey of the southern Galactic plane and Magellanic Clouds

被引：7

作者：

Russeil, D ^{[1
]}

Georgelin, YM ^{[1
]}

Amram, P ^{[1
]}

Georgelin, YP ^{[1
]}

Laval, A ^{[1
]}

Marcelin, MM ^{[1
]}

机构：

[1] Observ Marseille, F-13248 Marseille 2, France

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA | 1998年 / 15卷 / 01期

关键词：

ISM; HII regions; supernovae remnants; kinematics and dynamics; Galaxy; structure; Galaxies; individual (Large Magellanic Cloud; Small Magellanic Cloud);

D O I：

10.1071/AS98009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The ionised 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. A survey of the southern Galactic plane then started at the beginning of 1990. The major instrumental aim is to obtain spectral information, and therefore the ionised gas kinematics, in each pixel of the observed fields. Already 300 fields of 38' x 38' have been observed in H alpha with a spatial resolution of 9 " x 9 ", covering almost the entire fourth quadrant of the Galactic plane, and numerous discrete HII regions have been detected! as well as diffuse emission which is widely distributed. Also, the Magellanic Clouds have been studied using the same instrument.

引用

页码：9 / 13

页数：5

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