Disk-Halo interaction: The molecular clouds in the Galactic center region

  title={Disk-Halo interaction: The molecular clouds in the Galactic center region},
  author={Denise Riquelme and Jes{\'u}s Mart{\'i}n-Pintado and Rainer Mauersberger and M. A. Amo-Baladr{\'o}n and Sergio Mart{\'i}n and Leonardo Bronfman},
From a large-scale study of the Galactic center (GC) region in SiO(2 – 1), HCO+(1 – 0), and H13CO+(1 – 0), we identify shock regions as traced by the enhancement of SiO emission. We selected 9 positions called by us as "interaction regions", because they mark the places where gas in the GC could be interacting with gas coming from higher latitude ("disk-halo interaction") or from larger galactocentric radius. These positions were studied using the 12C/13C isotopic ratio to trace gas accretion… 
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  • A&A 523,
  • 2010