LBT/MODS spectra of distant X-ray selected galaxy clusters
Abstract
We present a sample of distant clusters of galaxies selected from the 2XMM catalogue. Extended X-ray sources with no visible counterpart in the SDSS were chosen for deep imaging with the LBT/LBC. The most promising fields, showing overdensities of red galaxies in pre-imaging, were selected for spectroscopic follow-up with LBT/MODS. We were able to derive redshifts for seven galaxy clusters (0.75 < z < 1.0) and present X-ray and optical properties as well as mass estimations. Carried by our previous success and triggered by the availability of WISE survey, we use IR data to support the selection of distant (z > 1) clusters. The first promising fields have received deep pre-imaging and await spectroscopic follow-up.
- Publication:
-
The X-ray Universe 2014
- Pub Date:
- July 2014
- Bibcode:
- 2014xru..confE.304R