DEROSITAS Survey

eROSITA is the primary instrument on-board the Russian Spektrum-Roentgen-Gamma mission (Merloni et al. 2012) and will be used to scan the whole sky in the X--ray band. With a sensitivity 30 times better than the ROSAT all sky survey in the 0.5-2 keV energy band and an angular resolution of $\sim 25$", the 4-year survey will enable the selection of $\sim10^5$ galaxy clusters out to redshifts $>$ 1. This large cluster sample will allow a broad range of cosmological and astrophysical studies, and put very stringent constraints on the cosmological parameters of the Universe.
However, the X-ray sample can only be fully exploited when combined with optical imaging, which (a) provides optical confirmation and counterparts to the X-ray detections; and (b) allows the estimation of photometric redshifts, which significantly increases the sample's cosmological constraining power. Providing photometric redshifts to the eROSITA collaboration, to enable a wide range of science topics, is one of the goals of this proposal.
The DECam eROSITA Survey project (DeROSITAS, PI Dr. Alfredo Zenteno) is a joint effort between scientists from Universidad de La Serena, Universidad de Valparaíso, the Cerro Tololo Inter-American Observatory (CTIO), Gemini Observatory, and the German eROSITA Consortium, to carry out joint scientific analysis using eROSITA X-ray data and multi-wavelength data, mainly optical imaging data obtained with the Dark Energy Camera (DECam) at 4m Victor Blanco Telescope at CTIO..

i) Studying the evolution of clusters and their galaxy content as a function of the clusters’ dynamical state.
ii) The role of low mass galaxy clusters in galaxy morphological evolution.
iii) The nature of galaxies in transition from the field to the cluster core over the past 8 Gyrs.

The DECam eROSITA Survey (DeROSITAS) collaboration invite for applications for sponsorship to the three year program FONDECYT Postdoctoral Fellowships 2019.
The DeROSITAS collaboration is a joint effort between scientists from Universidad de La Serena, Universidad de Valparaíso, the Cerro Tololo Inter-American Observatory (CTIO), Gemini Observatory, and the German eROSITA Consortium, to carry out joint scientific analysis using eROSITA X-ray data and multi-wavelength data, mainly optical imaging data obtained with the Dark Energy Camera (DECam).
Applications to the fellowships are submitted with the sponsorship of a faculty member and early coordination is required. Interested applicants should send the Curriculum Vitae with a list of relevant publications, a research statement (max. 3 pages), and 2 reference letters to be sent directly by the referees. The deadline for the application is July 31.
For more information, go to JOBREGISTER ANNOUNCE.