Buoyant Bubbles and the Disturbed Cool Core of Abell 133

Details Buoyant Bubbles and the Disturbed Cool Core of Abell 133 Buoyant Bubbles and the Disturbed Cool Core of Abell 133

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.0406r&link_type=abstract

American Astronomical Society, HEAD meeting #11, #4.06; Bulletin of the American Astronomical Society, Vol. 41, p.656

Astronomy and Astrophysics

Astronomy

Scientific paper

X-ray cavities, often filled with radio-emitting plasma, are routinely observed in the intracluster medium of clusters of galaxies. These cavities, or "bubbles", are evacuated by jets from central AGN and subsequently rise buoyantly, playing a vital role in the "AGN feedback" model now commonly evoked to explain the balance between heating and radiative cooling in cluster cores. As the bubbles rise, they can displace cool central gas, promoting mixing and the redistribution of metals. I will show a few examples of buoyant bubbles, then argue that the peculiar morphology of the Abell 133 is due to buoyant lifting of cool central gas by a radio-filled bubble.

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