Tsunamis in Galaxy Clusters: Heating of Cool Cores by Acoustic Waves
Open Access
- 10 January 2004
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 600 (2) , 650-656
- https://doi.org/10.1086/380113
Abstract
Using an analytical model and numerical simulations, we show that acoustic waves generated by turbulent motion in intracluster medium effectively heat the central region of a so-called ``cooling flow'' cluster. We assume that the turbulence is generated by substructure motion in a cluster or cluster mergers. Our analytical model can reproduce observed density and temperature profiles of a few clusters. We also show that waves can transfer more energy from the outer region of a cluster than thermal conduction alone. Numerical simulations generally support the results of the analytical study.Comment: 18 pages, accepted for publication in ApKeywords
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This publication has 72 references indexed in Scilit:
- ChandraObservation of the Cooling Flow Cluster Abell 2052The Astrophysical Journal, 2003
- The long-term effect of radio sources on the intracluster mediumMonthly Notices of the Royal Astronomical Society, 2003
- The new emerging model for the structure of cooling cores in clusters of galaxiesAstronomy & Astrophysics, 2002
- [ITAL]Chandra[/ITAL] Observation of the Radio Source/X-Ray Gas Interaction in the Cooling Flow Cluster Abell 2052The Astrophysical Journal, 2001
- The spatial distributions of cooling gas and intrinsic X-ray-absorbing material in cooling flowsMonthly Notices of the Royal Astronomical Society, 1997
- Evolving cooling flowsMonthly Notices of the Royal Astronomical Society, 1995
- A ROSAT HRI study of the interaction of the X-ray-emitting gas and radio lobes of NGC 1275Monthly Notices of the Royal Astronomical Society, 1993
- Heat conduction boundary layers of condensed clumps in cooling flowsMonthly Notices of the Royal Astronomical Society, 1989
- On the dynamical role of cosmic rays in cooling flows in clusters of galaxiesThe Astrophysical Journal, 1988
- Heat conduction in cooling flowsThe Astrophysical Journal, 1988