| |
 |
| Paper: |
H I Shells at Forbidden Velocities |
| Volume: |
438, The Dynamic Interstellar Medium: A Celebration of the Canadian Galactic Plane Survey |
| Page: |
372 |
| Authors: |
Kang, J.; Koo, B.-C.; Salter, C. |
| Abstract: |
In large-scale (ℓ,v) diagrams of low-resolution HI survey
data, there are many faint wing-like features at velocities
beyond the boundaries allowed by Galactic rotation (Forbidden-Velocity
Wings, FVWs).
Their high velocities and sizes imply that they are the results of
violent events.
One of the strongest candidates for the nature of FVWs
is that they are the rapidly expanding
HI shells of missing old Galactic SNRs, which are too faint to be visible
in radio continuum and X-rays.
We summarize HI observations towards 22 FVWs using
the Arecibo 305-m and the Green Bank 110-m radio telescopes.
We present the HI observational results for three FVWs, which appear to
be parts of expanding shells. |
|
|
|
|
|
