Splinter Meeting eROSITA

eROSITA is Coming! Opportunities to Study Cosmology and Large Scale Structure with X-ray Selected Clusters and AGN

Time: Thursday September 21, 14:00-16:30 and 17:00-19:00

Room: HS4

Organizers: A. Finoguenov, A. Merloni, J. Mohr, T. Reiprich

The eROSITA instrument will launch as part of the Spectrum-Roentgen-Gamma mission in late 2018 and will be employed to carry out eight all sky X-ray surveys over a four year period. Each of these surveys will be equivalent to four times the depth of the ROSAT All Sky Survey, the last X-ray sky survey that was carried out in the early 1990's. The eROSITA dataset and the resulting X-ray selected cluster and AGN catalogs will be released periodically during the mission. Once redshifts are determined through joint analysis with multi-band ground based datasets like those from the Dark Energy Survey, the eROSITA cluster sample will enable precise studies of cosmology - including studies of the underlying explanation for the accelerating expansion of the Universe - through measurement of the cluster mass function and the spatial distribution of the clusters and AGN. A key issue facing the eROSITA mission is the measurement of the cluster mass scale using methods like weak lensing and dynamical masses. In addition, the X-ray selected cluster and AGN populations will provide a rich dataset for studies of the evolution of large scale structure and the galaxy population out to redshift z~1 and beyond.


14:00  Andrea Merloni:
eROSITA on SRG: an overview

14:35  Annalisa Pillepich:
The X-ray cluster survey with eROSITA: constraints on dark-energy

15:00  Miriam Elizabeth Ramos-Ceja:
Synthetic simulations of the extragalactic sky seen by eROSITA: pre-launch selection functions and cosmological forecasts

15:25  Matthias Klein:
The multi-component matched filter cluster confirmation tool (MCMF)

15:50  Sebastian Grandis:
Forecasting Impact of DES Weak Lensing Mass Calibration on eROSITA Cluster Cosmology Constraints

16:10  Florian Pacaud:
Galaxy clusters as cosmological probes: from observations to parameter constraints

16:30-17:00 Coffee Break & Poster Session (Foyer Physics)

17:00  Andrea Merloni:
Understanding AGN evolution with large X-ray surveys: prospects for eROSITA

17:20  Tim Schrabback:
Calibrating the masses of high-redshift galaxy clusters with deep weak lensing data

17:40  Aarti Nagarajan:
Weak-lensing mass calibration of the Sunyaev-Zel'dovich effect using APEX-SZ galaxy clusters

18:00  Klaus Dolag:
Galaxy Clusters from the Magneticum Simulations

18:20  Thomas Reiprich:
Results from current X-ray selected galaxy cluster samples and way forward to eROSITA cosmology

18:40  Joseph Mohr:
Sunyaev-Zel'dovich Effect Galaxy Cluster Cosmology and Implications for eROSITA

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