The SZ effect from cluster cavities

Abstract

In this Letter we derive the SZ effect (SZE) observable in the direction of the giant X-ray cavities found in the atmospheres of galaxy clusters. We explore specifically the case of the cluster MS0735.6+7421. The SZE produced in the cavities embedded in the cluster thermal atmosphere is of non-thermal nature: it dominates the overall cluster SZE at the frequency x_{0,th} - at which the thermal SZE from the cluster vanishes - and appears, at mm and sub-mm frequencies, as a negative SZE located only in the regions of the intracluster space occupied by the cavities. We show that SZ observations, combined with X-ray and radio data, are able to shed light on the morphology, on the physical structure, on the dynamics and the origin of these recently discovered non-thermal features of galaxy clusters. These studies will be also relevant to determine the impact of specific events of the nature of cavities on the use of SZ and X-ray clusters as probes for cosmology and for the large scale structure of the universe.

5 pages, 3 figures, A&A Letters in press

References in corpus (4)

• A Systematic Study of Radio-Induced X-ray Cavities in Clusters, Groups, and Galaxies
• Relativistic Corrections to the Sunyaev-Zel'dovich Effect for Clusters of Galaxies
• The Non-Thermal Sunyaev-Zel'dovich Effect in Clusters of Galaxies
• Unveiling the composition of radio plasma bubbles in galaxy clusters with the Sunyaev-Zel'dovich effect

Cited by in corpus (14)

• PRISM (Polarized Radiation Imaging and Spectroscopy Mission): An Extended White Paper
• Constraints on the Thermal Contents of the X-ray Cavities of Cluster MS 0735.6+7421 with Sunyaev-Zel'dovich Effect Observations
• SZ effect from radio-galaxy lobes: astrophysical and cosmological relevance
• The Sunyaev-Zel'dovich effect of simulated jet-inflated bubbles in clusters
• Comptonization of the cosmic microwave background by high energy particles residing in AGN cocoons
• Beyond the Standard Lore of the SZ effect
• GBT/MUSTANG-2 9" resolution imaging of the SZ effect in MS0735.6+7421: Confirmation of the SZ Cavities through direct imaging
• On the ability of spectroscopic SZ effect measurements to determine the temperature structure of galaxy clusters
• On the Mass Loading of AGN-Driven Outflows in Elliptical Galaxies and Clusters
• Studying the leptonic structure of galaxy cluster atmospheres from the spectral properties of the SZ effect
• Simulating SZ intensity maps of giant AGN cocoons
• Searching for AGN-driven Shocks in Galaxy Clusters
• Thermal and non-thermal Sunyaev-Zel'dovich effect in the cavities of the galaxy cluster MS 0735.6+7421: the role of the thermal density in the cavity
• Sunyaev Zel'dovich effect in galaxy clusters cavities: thermal or non-thermal origin?