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 blast wave 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.
|Titolo:||Sunyaev-Zel'dovich Effects from Quasars in Galaxies and Groups|
|Autori:||LAPI A; CAVALIERE A; DE ZOTTI G|
|Rivista:||THE ASTROPHYSICAL JOURNAL|
|Data di pubblicazione:||2003|
|Fascicolo:||2, Part 2|
|Digital Object Identifier (DOI):||10.1086/380106|
|Appare nelle tipologie:||1.1 Journal article|