Sunyaev-Zel'dovich Effects from Quasars in Galaxies and Groups

Astronomy and Astrophysics – Astrophysics

Scientific paper

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4 pages, 3 figures, uses REVTeX4 and emulateapj.cls. Accepted by ApJL

Scientific paper

10.1086/380106

The energy fed by active galactic nuclei to the surrounding diffuse baryons changes their amount, temperature, and distribution; so in groups and in member galaxies it affects the X-ray luminosity and also the Sunyaev-Zel'dovich effect. Here we compute how the latter is enhanced by the transient blastwave driven by an active quasar, and is depressed when the equilibrium is recovered with a depleted density. We constrain such depressions and enhancements with the masses of relic black holes in galaxies and the X-ray luminosities in groups. We discuss how all these linked observables can tell the quasar contribution to the thermal history of the baryons pervading galaxies and groups.

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