The SZ effect from cluster cavities
| dc.creator | Colafrancesco, S. | |
| dc.date | 2005-03-30 | |
| dc.date.accessioned | 2026-07-07T06:33:23Z | |
| dc.date.available | 2026-07-07T06:33:23Z | |
| dc.description | 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. | |
| dc.description | 5 pages, 3 figures, A&A Letters in press | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0503646 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0503646 | |
| dc.identifier | Astron.Astrophys. 435 (2005) L9-L12 | |
| dc.identifier | doi:10.1051/0004-6361:200500100 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/99173 | |
| dc.subject | Astrophysics | |
| dc.title | The SZ effect from cluster cavities | |
| dc.type | text |