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Shock Heating by Nearby AGN

  • Conference paper
Book cover Heating versus Cooling in Galaxies and Clusters of Galaxies

Part of the book series: Eso Astrophysics Symposia ((ESO))

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Summary

Shock heating by radio jets is potentially an important process in a range of environments as it will increase the entropy of the heated gas. Although this process is expected to occur in the most powerful radio-loud AGN, strong shocks have so far only been detected in nearby low-power radio galaxies. Here we discuss X-ray detections of strong shocks in nearby galaxies, including a new detection of shocked gas around both lobes of the nearby radio galaxy NGC 3801 with inferred Mach numbers of 3 - 6 and a total injected energy comparable to the thermal energy of the ISM within 11 kpc. We discuss possible links between shock heating, AGN fuelling and galaxy mergers and the role of this type of system in feedback models.

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Author information

Authors and Affiliations

  1. School of Physics, Astronomy and Mathematics, University of Hertfordshire, College Lane, Hatfield, AL10 9AB, UK

    J.H. Croston & M.J. Hardcastle

  2. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA

    R.P. Kraft

Authors
  1. J.H. Croston
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  2. R.P. Kraft
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  3. M.J. Hardcastle
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Editor information

Editors and Affiliations

  1. Max-Planck-Institut, für extraterrestrische Physik, Giessenbachstraβe, 85748 Garching, Germany

    H. Böhringer , G.W. Pratt , A. Finoguenov  & P. Schuecker , ,  & 

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© 2007 Springer-Verlag Berlin Heidelberg

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Croston, J., Kraft, R., Hardcastle, M. (2007). Shock Heating by Nearby AGN. In: Böhringer, H., Pratt, G., Finoguenov, A., Schuecker, P. (eds) Heating versus Cooling in Galaxies and Clusters of Galaxies. Eso Astrophysics Symposia. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-73484-0_18

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