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, - - 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

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A joint MegaCam/eRosita survey

  • M. Pierre CEA Saclay

Monday, June 2, 2014

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eROSITA is part of SRG

a German-Russian collaboration

eROSITA (0.1-10 keV): Germany ART + launcher (~5-30 keV): Russia Launch date: early 2016

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)

Monday, June 2, 2014

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Spektrum-Roentgen-Gamma

ART eROSITA Navigator

Monday, June 2, 2014

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eROSITA Telescope

3265 mm w/o Cover 1941 mm

7 identical telescopes (Wolter-I / CCD-camera)

Monday, June 2, 2014

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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

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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

Design Driving Science

Monday, June 2, 2014

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RASS vs eRASS comparison

  • HEW ~ 30’’ vs 80’’ (survey mode)
  • Depth : eRASS some 20 times deeper

than RASS : 105 vs 106 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

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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

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Monday, June 2, 2014

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Monday, June 2, 2014

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Angle between sun and Earth max. 13° Scan-Axis always pointing towards Earth (antenna!) Scanspeed less than in LEO, ~ 4h/revolution

Mission Scenario

  • M. Fürmetz, 2010

Lunar flyby Monday, June 2, 2014

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Launch foreseen by the beginning of 2016 Survey duration: 4 years

Monday, June 2, 2014

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eROSITA Exposure - 4 years

(galactic projection) 3ksec 5ksec 30ksec NEP SEP Russia Germany Sky sharing out

Monday, June 2, 2014

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e russian sky

Monday, June 2, 2014

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he german sky

The german team is very interested in the CFHT-eRosita-Euclid 1500 deg2

  • verlap

Monday, June 2, 2014

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! WARNING !

If the (raw) data are made public, eRosita will not need to collaborate with FR or CA !

Monday, June 2, 2014

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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

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FIN

Monday, June 2, 2014