erosita on Spectrum-Rentgen-Gamma (SRG) Vadim Burwitz on behalf of the erosita team Max-Planck-Institut für extraterrestrische Physik

Transcription

1 erosita on Spectrum-Rentgen-Gamma (SRG) Vadim Burwitz on behalf of the erosita team Max-Planck-Institut für extraterrestrische Physik 1

2 Historical Development Spectrum-XG Jet-X, SODART, etc. First X-ray all-sky survey with an imaging telescope ROSAT Negotiations between Roskosmos and ESA on a "new" Spectrum-XG mission (2005) MoU between Roskosmos and DLR (2007) Detailed Agreement (2009) SRG Launch: 2013 erosita Bundle of 7 small telescopes To extend the all-sky survey towards higher energies ABRIXAS science on the International Space Station ABRIXAS 1999 ROSITA 2002 DUO 2004 Dark Energy 10 5 Clusters of Galaxies

3 SRG ART-XC IKI erosita MPE Navigator NPO Lavochkin Launch from Baikonur with Zenit-FREGAT, Nov Zenit-Fregat-Navigator = standard configuration, also used for Elektro-L (Jan 2011) and Radiastron (Jul 2011). IACHEC Napa, CA, March 28,

4 erosita Collaboration Core Institutes (DLR funding): MPE, Garching/D Universität Erlangen-Nürnberg/D IAAT (Universät Tübingen)/D SB (Universität Hamburg)/D Astrophysikalisches Institut Potsdam/D Co-I Institutes: MPA, Garching/D IKI, Moscow/Ru USM (Universität München)/D AIA (Universität Bonn)/D Industry: Media Lario/I Mirrors, Mandrels Kayser-Threde/D Mirror Structures Carl Zeiss/D ABRIXAS-Mandrels Invent/D Telescope Structure pnsensor/d CCDs IberEspacio/E Heatpipes RUAG/A Mechanisms HPS/D,P MLI + many small companies MPE: Scientific Lead Institute, Project Managment Instrument Design, Construction, Integration & Test Data Handling & Processing, Archive etc. More than 50 people are working for erosita at MPE

5 Observational Constraints Ω Λ WMAP results from Spergel et al REFLEX results from Schuecker et al Ω m Vikhlinin et al., 2009 WMAP SN Ia Clusters Flat Universe Accelerated Expansion Matter density Clusters of galaxies are the largest gravitationally bound entities in the universe In X-rays we see clusters as one continuous entity IACHEC Napa, CA, March 28, 2012 COSMOS Field XMM-Newton

6 Design Driving Science Constrain parameters of Dark Energy Detectability of Clusters of Galaxies, z < 1.5 All-sky survey with sensitivity erg cm -2 s -1 Deep survey field(s) (~100 sqdeg) with erg cm -2 s -1 Individual pointed observations Instrument: Moderate angular resolution (< 28 arcsec, aver. over FoV) Large collecting area (> 2000 cm 1keV) Large FoV (1 Ø) Long duration (survey 4 years 1/2 year (ROSAT) IACHEC Napa, CA, March 28, 2012

7 Instrument Telescope Front Cover 2 Star Sensors 2 Camera Cooling Radiators 7 X-ray Baffles 7 Mirror Modules 2 Sun Sensors 7 Electron Deflectors Hexapod = I/F with S/C 2 E-Box Cooling Radiators 7 Filter-Wheels 7 CCD-Cameras 7 Camera Electronics 2 Control Electronics 7 identical Mirror Modules 54 nested Mirror Shells each 7 identical pnccd Cameras IACHEC Napa, CA, March 28, 2012 Field of View Angular Resolution Energy Range 1 Ø 15 arcsec on-axis 0,5-10 kev 7

8 Mission Profile Orbit around L2 (~ ½ yr) Continously rotating during Survey, ~ 4 hours / revolution 4 years all-sky survey, 3 years pointing L2

9 Exposure Map IACHEC Napa, CA, March 28,

10 Sky Division IKI/Ru MPE/D

11 erosita H/W: Telescope Structure Telescope Structure prior integration of subsystems and components

12 Mirror Assembly (x 7)

13 erosita H/W: Mirror Assembly Mirror Modules FM-production running 15 arcsec HEW, on-axis

14 Camera Assembly (x 7) warm (roomtemperature) CCD-Module cold (-95, goal) Casing

15 pnccd-camera pnccd Module working since 2010, in spec size: pixels = mm 2 cycle time: 50msec energy resolution 6 kev

16 Thermal Tests

17 Miscellaneous Magnetic Electron Deflector Filterwheel X-ray baffle qualified qualified qualified cryogenic heatpipes tested last year at the Drop Tower in Bremen, 10sec µg

18 MPE Test Facilities hundreds of individual tests to be conducted 9 vacuum chambers continuously in operation + shaker + other equipment

19 Calibration court. K. Dennerl

20 NRTA & SASS & Catalogues NRTA (Near Real Time Analysis) SASS (Standard Analysis Software System)

21 Simulations Off-axis blurring of a Wolter-I telescope PSF has to be averaged over the FoV 15 arcsec on-axis 28 arcsec averaged Clusters of Galaxies 400 with z > 1

22 Working Groups Science Working Groups : Clusters and Cosmology AGN, Blazars Normal Galaxies Compact objects Stars Solar System Diffuse emission, SNR Infrastructure Working Groups : Time Domain Astrophysics Data analysis, source extraction, catalogs Multi-wavelength followup Calibration Background Chairs H. Boehringer, J. Mohr, T. Reiprich K. Nandra F. Haberl A. Schwope, A. Santangelo J. Robrade, J. Schmitt K. Dennerl W. Becker, M. Freyberg, M. Sasaki J. Wilms, I. Kreykenbohm H. Brunner J. Mohr K. Dennerl M. Freyberg IACHEC Napa, CA, March 28,

23 Follow-up Observations Needs for follow up: Enabling studies of cosmology and cluster physics: Redshift: phot-z + spec-z, Mass Estim.: weak lens. + velocity disersions Evolution of AGN Population Redshift estim., phot-z, spec-z Galactic Sources