| Type |
Journal Article |
| Names |
S. Heinz, M. Brüggen, A. Young, E. Levesque |
| Publication |
Monthly Notices of the Royal Astronomical Society Letters |
| Volume |
373 |
| Issue |
1 |
| Pages |
L65-L69 |
| Date |
November 1, 2006 |
| Short Title |
The answer is blowing in the wind |
| URL |
http://adsabs.harvard.edu/abs/2006MNRAS.373L..65H |
| Library Catalog |
NASA ADS |
| Abstract |
We present numerical simulations investigating the interaction of active
galactic nucleus jets with galaxy clusters, for the first time taking
into account the dynamic nature of the cluster gas and detailed cluster
physics. The simulations successfully reproduce the observed
morphologies of radio sources in clusters. We find that cluster
inhomogeneities and large-scale flows have a significant impact on the
morphology of the radio source and cannot be ignored a priori when
investigating radio source dynamics. Morphological comparison suggests
that the gas in the centres of clusters like Virgo and Abell 4059 shows
significant shear and/or rotation. We find that shear and rotation in
the intracluster medium move large amounts of cold material back into
the path of the jet, ensuring that subsequent jet outbursts encounter a
sufficient column density of gas to couple with the inner cluster gas,
thus alleviating the problem of evacuated channels discussed in the
recent literature. The same effects redistribute the excess energy
ΔE deposited by the jet, making the distribution of ΔE at
late times consistent with being isotropic. |
| Tags |
GALAXIES: CLUSTERS: GENERAL, galaxies: jets, intergalactic medium |