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| Paper: |
Momentum-driven Feedback and the M-σ
Relation in Non-isothermal Galaxies |
| Volume: |
460, AGN Winds in Charleston |
| Page: |
256 |
| Authors: |
McQuillin, R. C.; McLaughlin, D. E. |
| Abstract: |
We solve for the velocity fields of momentum-conserving supershells
driven by feedback from supermassive black holes or nuclear star
clusters (central massive objects: CMOs). We treat, for the first
time, the case of CMOs embedded in gaseous protogalaxies with
non-isothermal dark matter haloes having peaked circular-speed
profiles. We find the CMO mass that is
sufficient to drive any shell to escape any such halo.
In the limit of large halo mass, relevant to real galaxies,
this critical CMO mass depends only on the peak circular speed in the
halo, scaling as Mcrit ∝ Vc,pk4. |
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