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Paper: A Synthetic 21 cm Galactic Plane Survey of a Simulated Spiral Galaxy
Volume: 438, The Dynamic Interstellar Medium: A Celebration of the Canadian Galactic Plane Survey
Page: 149
Authors: Douglas, K. A.; Acreman, D. M.; Dobbs, C. L.; Brunt, C. M.
Abstract: Using a model Smoothed Particle Hydrodynamics spiral galaxy and a radiative transfer code, we have created a synthetic HI Galactic Plane Survey, with data cubes covering 90° ≤ ℓ ≤ 180°. These cubes are compared to Milky Way Galactic Plane Survey data, in a latitude range of |b| < 3° and radial velocities corresponding to expected Second Quadrant values (v < +20 km s-1). With a focus on ‘Perseus Arm’ gas in our simulated galaxy, we aim to trace atomic gas as it encounters shock motions at the spiral arm interface. The observation of HI self-absorption features at these shock sites allows us to investigate further the connection between cold atomic gas and the onset of molecular cloud formation.
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