We have studied the large scale distribution of matter in the Chandra Deep Field South on the basis of photometric redshifts and we have identified several over-densities between redshift 0.6 and 2.3. We analyse two of these structures using the deepest X-ray observations ever obtained: 4 Ms with the Chandra satellite and 2.5 Ms with XMM-Newton. We set a. very faint upper limit on the X-ray luminosity of a structure at redshift 1.6, and we find an extended X-ray emission from a structure at redshift 0.96 of which we can estimate the gas temperature and make a comparison with the scaling relations between the X-ray luminosity and mass or temperature of high redshift galaxy clusters.
The Large-scale Structure in the Chandra Deep Field South / Trevese, Dario; Fabrizio, Fiore; Enrico, Piconcelli; Marco, Castellano; Laura, Pentericci; Piero, Ranalli; Andrea, Comastri. - 6:S277(2011), pp. 333-336. (Intervento presentato al convegno 277th Symposium of the International-Astronomical-Union on Tracing the Ancestry of Galaxies (on the Land of Our Ancestors) tenutosi a Ouagadougou; Burkina Faso) [10.1017/s1743921311023064].
The Large-scale Structure in the Chandra Deep Field South
TREVESE, Dario;
2011
Abstract
We have studied the large scale distribution of matter in the Chandra Deep Field South on the basis of photometric redshifts and we have identified several over-densities between redshift 0.6 and 2.3. We analyse two of these structures using the deepest X-ray observations ever obtained: 4 Ms with the Chandra satellite and 2.5 Ms with XMM-Newton. We set a. very faint upper limit on the X-ray luminosity of a structure at redshift 1.6, and we find an extended X-ray emission from a structure at redshift 0.96 of which we can estimate the gas temperature and make a comparison with the scaling relations between the X-ray luminosity and mass or temperature of high redshift galaxy clusters.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
