Tsunamis in Galaxy Clusters: Heating of Cool Cores by Acoustic Waves

Details Tsunamis in Galaxy Clusters: Heating of Cool Cores by Acoustic Waves Tsunamis in Galaxy Clusters: Heating of Cool Cores by Acoustic Waves

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xrrc.proce8.11f&link_type=abstract

"X-Ray and Radio Connections (eds. L.O. Sjouwerman and K.K Dyer) Published electronically by NRAO, http://www.aoc.nrao.edu/event

Physics

X-Ray, Radio, Cluster Mergers

Scientific paper

Using an analytical model, 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 several clusters. We also show that waves can transfer more energy from the outer region of a cluster than thermal conduction alone.

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