1. JW den Herder 1 18/10/2004 Science case Main science drivers (comsic vision 2015-2025): Super Novae and the life cycle of matter Study of cluster evolution (physical state and chemical abundances) up to z=2 Study birth and growth of supermassive BH at z~10 Gravity in the strong field limit (relativisticaly broadened line) Matter under extreme conditions (near the surface of a NS)

2. JW den Herder 2 18/10/2004 Aeff  E (keV)  “) FoV (‘) tt CR c/s Cluster evolution1020.1-10510-- BH evolution10-0.1-40220-- GR (Fe-K, AGN)1@641-40--10010 4 EOS1020.1-15-- 1-10  s 10 5 SNe1020.2-40510-200 GRB? WHIM absorption100.5– 20.1-10---- WHIM emission101-20.1-2-20-- Cluster outskirts101-20.1-10-20-- Cooling flows120.1-102 – 53-- AGN dynamics101-20.1-20--10010 4 Microquasars150.3-202-5- 1-10  s 10 6 GR (Fe-K, galactic)1@650.3-20-- 1-10  s 10 6 Stellar flares1030.2-10--1010 4 Cyrogenic 11@64@60.3-152-510-20 Cryogenic 2101-20.1-32-55-10

3. JW den Herder 3 18/10/2004 Conclusions Science case Need for 2 nd cryogenic instrument optimized at low energies, energy resolution prime driver, then low energy cutoff (0.2- 0.1), next countrate, and finally FoV Redundancy is also an important driver Instrument development plan Demonstrate capability to build cryogenic instrument for XEUS/Con-X in Europe Concentrate on TES microcalorimeter (but not excluding others)

4. JW den Herder 4 18/10/2004 commonalities parameterTESMagneticSTJ CoolerXXNo (He3) FiltersXXX Instrument control unitXDifferentdifferent Analysis softwareXsimilar Integration and testingXsimilar X-ray testingXxX Cryo harnessXXX Read-out sytemXX ?no Magnetic fieldXXX

5. JW den Herder 5 18/10/2004 Prototype instrument requirements (not yet XEUS level) optimize on energy resolution parameterRequirementscomments Array size5 x 5Scalable to 32 x 32, multiplexing4 x 8 or 2 x 16 FDM range: 1 - 10 MHz E range0.2-3 R500 @ 1 keV QE~ 0.5Including filters and filling factor at Oxygen lines Time resolution 5  secGoal 1  sec Count rate limit150 Hz/pixelPile-up < 10 % Pixel size> 0.25 x 0.25 mm 2

6. JW den Herder 6 18/10/2004 Instrument concept

7. JW den Herder 7 18/10/2004 Roadmap 1 ItemActiveinterestedcomment Cooler + controlMSSLIASF/INFNSeparate ESA contract Filters (X-ray, UV)FinlandESA, Leicester Instrument control unitopen Signal processingLeicesterIn CIS contract EGSEopen Analysis softwareSpain, Helsinki Integration and testingSRONMSSL, INFN/IASFHeidelberg (at component level) X-ray testingItaly, Leicester MPE(Panter) Synchrotron beam: ESFR, Diamond, Soleil Environmental testingNot yet CalibrationFrance

8. JW den Herder 8 18/10/2004 Roadmap 2 ItemActiveinterestedcommen t Packaging detector, LC filters + squids on cold finger MSSL Magnetic field generation/shielding MSSL Cryo harness + EMIMSSL TES arraySRON/MESAINFN/IASF5 x 5 FDM systemSRON/VTTINFN/ISAF, JAXA FDM: AC-biasSRONpartner FDM: LC filtersSpain (TBD) FDM: SQUID + baseband feedback VTT/SRONINF FDM demuxMPE ?ASIC

9. JW den Herder 9 18/10/2004 Key issues for XEUS ItemActiveInterested Excess noiseSRONLeicester, INFN (Gatti) Pixel size limitationsSRON, JAXA Selection of absorber material (low C) SRON, INFN (Gatti)Spain

10. JW den Herder 10 18/10/2004 Next steps Science case: justification for 2 nd instrument optimized at low energyBleeker, Barcons Compare to gratings, low E cut-off, Astro-E2, Be realistic, use cosmic vision Prototype instrument development plande Korte + others High level system overview, technology risks and desired/required qualification level + technology risks Face-to-face meetings (where appropriate) Funding (seek funding at national level) Explore potential Japanese interest (ISAS) Coordinate developments with ESA (payload definition document etc) Identify consequences of magnetic micro calorimeter in the prototype Next meeting (spring 2005) Coordination/progress monitoringden Herder