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| Paper: |
What's in a Fermi Bubble: A Quasar Episode in the Galactic Center |
| Volume: |
460, AGN Winds in Charleston |
| Page: |
268 |
| Authors: |
Zubovas, K.; Nayakshin, S.; King, A. R. |
| Abstract: |
Fermi bubbles, the recently observed giant (∼10 kpc high) gamma-ray
emitting lobes on either side of our Galaxy (Su et al. 2010), appear
morphologically connected to the Galactic center, and thus offer a chance to
test several models of supermassive black hole (SMBH) evolution, feedback, and
relationship with their host galaxies. We use a physical feedback model
(King 2003, 2010) and novel numerical techniques
(Nayakshin et al. 2009) to simulate a short burst of activity in
Sgr A*, the central SMBH of the Milky Way, ∼6 Myr ago, temporally
coincident with a star-formation event in the central parsec. We are able to
reproduce the bubble morphology and energetics both analytically
(Zubovas et al. 2011), and numerically (Zubovas & Nayakshin, in
prep). These results provide strong support to the model, which was also used
to simulate more extreme environments (Nayakshin & Power 2010). |
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