1. Plateau d'Architecture des Systèmes Orbitaux A space Fresnel imager concept What features for what Science Preparing the way to space borne Fresnel Imagers Nice Observatory Workshop September 2009 Additional presentation

2. 2 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais What features for what Science ■ This presentation compares different scientific needs with their associated necessary instrument main features ■ In the next slides, the foreground text color corresponds to the spectral bandwidths: 3 array size classes: 3.5m 10m 30m IR NIR Vis NUV FUV

3. 3 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Faraway missions: extragalactic and young universe Scientific need " IR NIR

4. 4 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Faraway missions: extra galactic and young universe Instrumental consequences

5. 5 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Mid distance missions: Our galaxy active regions Scientific need " IR Vis UV

6. 6 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Mid distance missions: Our galaxy active regions Instrumental consequences

7. 7 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Nearby missions: Stellar and circumstellar imaging Scientific need " Vis UV

8. 8 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Nearby missions: Stellar and circumstellar imaging Instrumental consequences

9. 9 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Nearby missions: Exoplanets Scientific need

10. 10 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Nearby missions: Exoplanets Instrumental consequences

11. 11 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Local missions: Solar system small objects Scientific need ■ High resolution imaging ■High dynamic range

12. 12 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Local missions: Solar system small objects Instrumental consequences ■ High resolution imaging ■High dynamic range

13. 13 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Synthesis Only 4 instrumental configurations could cover the full domain ■Configuration 1 ■4 m lens, UV band, 3 channels, "low" dynamic range (10 -4 ) covering: - Active regions of our Galaxy - Stellar physics - Solar system

14. 14 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Synthesis ■Configuration 2 10 m lens, UV band, 4 channels, "low" dynamic range (10 -4 ) covering : - Extragalactic - Active regions de la Galaxy - Stellar physics - Solar system

15. 15 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Synthesis ■Configuration 3 10 m lens, IR band, 4 channels, high dynamic range (10 -8 ) Covering: - Extragalactic - Active regions of the Galaxy - Stellar physics - Jovian exoplanets & super-earths - Solar system

16. 16 Fresnel Nice Workshop 24/09/09 Space Fresnel Imager concept Laurent Koechlin and Emmanuel Hinglais Synthesis ■Configuration 4 30 m lens, IR band, 4 channels, high dynamic range (10 -8 ) Covering: - Far universe - Stellar astrophysics - Jovian et telluric exoplanets - Solar system