Proper motions of thin filaments at the Galactic Center

Physics – Optics

Scientific paper

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Scientific paper

L'-band (3.8µm) adaptive optics images of the central parsec of the Galactic Center obtained by NACO/VLT reveal thin filaments in the mini-spiral, mostly located close to the mini-cavity, along the inner edge of the northern arm and in the vicinity of some stars. We consider them shock fronts formed by the interaction of a fast wind with the ambient interstellar medium. We present first proper motion measurements of these features. Our results support the model of the collimated outflow originating from the disk of young mass-losing stars around the SgrA* and alternatively from the massive black hole itself.

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