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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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