Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Explaining the Energetic AGN Outburst of MS0735+7421 with Massive Slow
  Jets   By conducting axisymmetrical hydrodynamical numerical simulations (2.5
dimensional code) we show that slow, massive, wide jets can reproduce the
morphology of the huge X-ray deficient bubble pair in the cluster of galaxies
MS0735+7421. The total energy of the jets, composed of the energy in the bubble
pair and in the shock wave, is constraint by observations conducted by McNamara
et al. (2009) to be ~10^{62}erg. We show that two opposite jets that are active
for ~100Myr, each with a launching half opening angle of ~70 degrees, an
initial velocity of ~0.1c, and a total mass loss rate of the two jets of ~100
Mo/year, can account for the observed morphology. Rapidly precessing narrow
jets can be used instead of wide jets. In our model the cluster suffered from a
cooling catastrophe ~100Myr ago. Most of the mass that cooled, ~10^{10} Mo, was
expelled back to the intracluster medium (ICM) by the AGN activity and is
inside the bubbles now, ~10% formed stars, and ~10% of the cold gas was
accreted by the central black hole and was the source of the outburst energy.
This type of activity is similar to that expected to occur in galaxy formation.

2
The categories of this paper are: math
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
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The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
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The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga