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A joint MegaCam/eRosita survey M. Pierre CEA Saclay Monday, June 2, - PowerPoint PPT Presentation

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A joint MegaCam/eRosita survey M. Pierre CEA Saclay Monday, June 2, 2014 eROSITA is part of SRG a German-Russian collaboration eROSITA (0.1-10 keV) : Germany Institutes: Max-Planck-Institut fr extraterrestrische Physik, Garching/D

  1. A joint MegaCam/eRosita survey M. Pierre CEA Saclay Monday, June 2, 2014

  2. eROSITA is part of SRG a German-Russian collaboration eROSITA (0.1-10 keV) : Germany Institutes: Max-Planck-Institut für extraterrestrische Physik, Garching/D Universität Erlangen-Nürnberg/D Universät Tübingen/D Universität Hamburg/D Astrophysikalisches Institut Potsdam/D Max-Planck-Institut für Astrophysik/D Space Research Institute IKI, Moscow/Ru Universität Bonn Universät München (LMU) ART + launcher (~5-30 keV) : Russia Launch date: early 2016 Monday, June 2, 2014

  3. Spektrum-Roentgen-Gamma ART eROSITA Navigator Monday, June 2, 2014

  4. eROSITA Telescope 7 identical telescopes (Wolter-I / CCD-camera) 3265 mm w/o Cover 1941 mm Monday, June 2, 2014

  5. X-ray Galaxy Clusters known today • ~ 200 – 300 from Einstein (1978 – 1981) • ~ 2000 published from ROSAT (1990 -2014) •~ 1000 new objects from XMM-Newton archival data • A few hundreds from XXL • currently ~ 20 with redshift > 1 and confirmed in X-ray Monday, June 2, 2014

  6. Design Driving Science Design Driving Science • Constrain parameters of Dark Energy • Detectability of 100.000 Clusters of Galaxies, z < 1.5 – All-sky survey with sensitivity 6 × 10 -14 erg cm -2 s -1 – Deep survey field(s) (~100 sqdeg) with 1 × 10 -14 erg cm -2 s -1 – Individual pointed observations Monday, June 2, 2014

  7. RASS vs eRASS comparison • HEW ~ 30’’ vs 80’’ (survey mode) • Depth : eRASS some 20 times deeper than RASS : 10 5 vs 10 6 sources • The proposed optical depths for NSLS, will be well suited to the ID and photo-z of the cluster and AGN population Monday, June 2, 2014

  8. Good optical data are necessary for the identification of X-ray sources Exemple with cluster XXL n0242 z~0.6 XMM PSF ~ 6’’ Monday, June 2, 2014

  9. Monday, June 2, 2014

  10. Monday, June 2, 2014

  11. Mission Scenario M. Fürmetz, 2010 Lunar flyby Angle between sun and Earth max. 13° Scan-Axis always pointing towards Earth (antenna!) Scanspeed less than in LEO, ~ 4h/revolution Monday, June 2, 2014

  12. Launch foreseen by the beginning of 2016 Survey duration: 4 years Monday, June 2, 2014

  13. eROSITA Exposure - 4 years (galactic projection) Germany NEP Russia SEP Sky sharing out 3ksec 5ksec 30ksec Monday, June 2, 2014

  14. e russian sky Monday, June 2, 2014

  15. The german team is very interested in the CFHT-eRosita-Euclid 1500 deg2 overlap he german sky Monday, June 2, 2014

  16. ! WARNING ! If the (raw) data are made public, eRosita will not need to collaborate with FR or CA ! Monday, June 2, 2014

  17. Summary • Marked interest from the German and Russian sides in the NSLS • For the moment, they are pursuing science indepedently • A German document is available for external collaborations • Unique opportunity for the French and Canadian communities to have access to the unique X-ray data set.  do no miss it! Monday, June 2, 2014

  18. FIN Monday, June 2, 2014

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