2. What does mean neighbours ? At the same epoch –simultaneous (transient phenomenae) –before (can affect the SIMBOL-X observing plan) –after (can complement SIMBOL-X observations) In the same energy range –competition ! –complementary (if performance differs) In relevant energy range (scientific complementary: e.g. radio, gamma-rays)

3. SIMBOL-X neighbourhood

4. Current X-ray observatories After ? Next ASM ? Chandra ? Suzaku: 3 years ? (  2008) ? Swift ? (no short term technical limit) XMM (and INTEGRAL)  > 2012 ? RXTE until ?

5. INTEGRAL (2002 - ?) SIMBOL-X  INTEGRAL source localisation / identification INTEGRAL  SIMBOL-X observing plan: ISGRI catalog  >20 keV flux (or upper limit)

6. MAXI (Japan, 2008 ?) All sky monitor (ISS)

7. Two types of X-ray detectors viewing the sky through slit apertures: GSC: 12 proportional gas counters (2-30 keV). Effective area of 6000 cm² SSC: CCD camera, 32 CCD chips. Energy resolution: 135 eV FWHM at 5.9keV

8. NEXT (Japan)

9. NEXT Hard X-ray Telescopes (HXTs): use super mirrors to concentrate hard X-rays up to ~80 keV. Wide-band X-ray Imagers (WXI): –upper-stage soft X-ray detector: thinned X-ray CCDs –lower-stage hard X-ray detector: CdTe pixel detector Soft Gamma-ray detector (SGD): ultra-low background, high-sensitivity detector in soft gamma-ray band by combining an active shield and a pixel detector. Soft X-ray Telescope (SXT) and Soft X-ray Spectrometer (SXS). TES (Transition-Edge Sensor) micro-calorimeters (goal 1000 pixels) Launch 2013 Duration: 5 years

10. SRG (Lobster/Rosita) free-flyer launch 2011 ? eRosita (0.5 - 10 keV): All sky survey (~ROSAT) PSF < 20", FOV 41' LOBSTER (0.1 - 4 keV)  transients ART XC (5 - 80 keV) Kumakhov optics ? (fiber lens) or coded mask

11. Instrument SSM (All Sky Monitor) CZTILAXPCSXT detectorPSPCCZT PC CCD imagingyes noyes optics1D-coded mask2D-coded maskcollimatorWolter-I Energy range2 - 10 keV10 - 100 keV3 - 100 keV0.3 - 8 keV Angular resolution 10'8'1' – 5'3' – 4' FOV6° x 90°17° x 17°1° x 1°0.35° Astrosat Payload launch 2008 ?

12. HXMT (China) The Hard X-ray Modulation Telescope (HXMT): collimated hard X- ray (20-200 keV) telescope  all-sky hard X-ray survey HXMT is based on the direct demodulation (DD) method NaI(Ti)/CsI(Na) phoswich The Phase A study: all the key technical difficulties of the telescope have been overcome Ground prototype of HXMT has been constructed, and the balloon borne flight testing has been finished. Platform: "Ziyuan II" (Earth Resource II) satellite series. Launch: 2010 Mission duration ? Angular resolution ? FOV ?

13. GLAST 2007 - ? All Sky Monitor Should be a major player Well calibrated at the Simbol-X time (overlap with HESS2, MAGIC 2) Will most likely produced a huge catalog of unidentified sources (~1 degree error boxes). Identification will be a challenge.

14. Cerenkov telescopes Southern hemisphere: HESS Northern hemisphere: MAGIC, VERITAS Energy range: ~ 500 GeV – 50 TeV Angular resolution: ~ 10' FOV: 5° Sensitivity: 10 mCrab (1 day) Will help the identification of the GLAST sources

15. HESS-2 Operational next year Virtual

16. MAGIC II (2007)

17. Not to scale ! The future: CTA Large telescope arrays Dense telescope arrays Large mirror area Large field of view Advanced photon detectors Advance signal & trigger processing slide from W. Hofmann

18. The future: CTA Crab 10% Crab 1% Crab GLAST MAGIC H.E.S.S. E. F(>E) [TeV/cm 2 s] slide from W. Hofmann

19. LOFAR (from 2007) RADIO (30-150 MHz) All Sky Monitor: transients detection  alert for SIMBOL-X TOOs (e.g. AGNs, μ-quasars ) Well adapted to map extended sources –Clusters: radiosynch  Lowfar IC  SIMBOL-X –SNRs: radiosynch  Lowfar, SIMBOL-X IC  CTA (HESS, MAGIC)

20. Complementary instruments multi-λ studies RX J1713.7-3946 Berezkho & Völk astro/ph-0602177 electrons  B 2 protons   gas Lofar VLA ATCA adapted from W. Hofmann SIMBOL-X GLASTHESS CTA

21. Complementary instruments All sky monitors GLAST (Gamma-rays: 0.05 – 100 GeV): 2007- ? HXMT (X-rays: 20-200 keV): 2010-? MAXI (X-rays: 2-10 keV): 2008-? Astrosat (X-rays: 2-10 keV): 2008-? eRosita (X-rays: 0.5-10 keV): 2011-? Lofar (radio): 2007-?

22. Competitive missions NEXT (WXI) Spectrum X-Gamma (ART XC)