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arxiv: astro-ph/9904096 · v1 · submitted 1999-04-08 · 🌌 astro-ph

The Minispiral in the Galactic Center revisited

classification 🌌 astro-ph
keywords datacentercubedimensionalgalacticinnermodelstreams
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We present the results of a re-examination of a [Ne II] line emission data cube (\lambda 12.8 \mu m) and discuss the kinematic structure of the inner \sim 3 \times 4 pc of the Galaxy. The quality of [Ne II] as a tracer of ionized gas is examined by comparing it to radio data. A three dimensional representation of the data cube allows us to disentangle features which are projected onto the same location on the sky. A model of gas streams in different planes is fitted to the data. We find that most of the material is located in a main plane which itself is defined by the inner edge of the Circum-Nuclear Disk in the Galactic Center. Finally, we present a possible three dimensional model of the gas streams.

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