NWO Team Membership: Organizations, Roles, and Leads

2. NWO Team Membership: Organizations, Roles, and Leads • Team consist of 43 active members • 9 organizations are participating • Additional involvement is provided from each organization and includes technical area experts and graduate/undergraduate students • Organizations, Roles and Leads: • Colorado University: PI, Science, Optical Design, and Systems Analysis: Webster Cash • Northrop Grumman: Deputy PI and Starshade Development: Amy Lo • Ball Aerospace Technology Corporation: Telescope Development: Charley Noecker • USNO: Astrometry: Rachel Dudik • NASA GRC: Occulter (Starshade) Propulsion: Scott Benson • KinetX: Mission Design and Navigation: Bobby Williams • GSI: Lead Scientist: Maggie Turnbull • University College of London: Exoplanet Spectra Modeling: Giovanna Tinetti • NASA GSFC: Study Management: Kate Hartman

3. The New Worlds Observer Starshade • The telescope is shaded from the star by the starshade • Beside a vanishingly small residual signal, starlight never enters the telescope 100% of the planet light still reaches the telescope

4. A Starshade Can Work with Any Telescope 1.2m 4m 10m 2.4m

5. Measure Planetary System Characteristics Zodiacal Light Indicates Orbital Inclination So Do Multi-planet Position Statistics

6. Planet Finding with StarshadesFive Random Systems from Raymond Database JWST The higher resolution of ATLAST brings weak signals out of the noise ATLAST

7. Spectroscopy of Earths ATLAST JWST ATLAST @ High Resolution Fine Structure!

8. Measure Planetary System Characteristics HD 92945 Neutral Beta Pic Red Epsilon Eridani • Exozodiacal Light and Debris • Will Give Clues on Whole System • May Interfere with Planet Detection • NOTHING is yet knownabout Exozodis • Solar System zodi has red scattered light color • Known debris disks show red, grey, & blue colors Greaves et al. (2005) AU Mic Blue

9. Perform General Astronomy • During 70% of Observing Time the Starshade will Be Travelling to the next Target. • Unify Exoplanet and UVOIR Communities • Very Broad Range ofAstronomy Served KBO UB313

10. Modeling and Lab Studies Transmission Radius • Apodizing Function Apodization Function The Hypergaussian function • Opaque Starshade

11. The starshade has broadband suppression performance Starshade designed for longest wavelength suppression, and then works BETTER at all shorter wavelengths Several simulation codes exist Code cross checked and in process of being validated by laboratory results Modeling and Lab Studies Linear Log

12. NGS Starshade with HID source, 1000s integration Chamber door closed wire wire Wire 3.9e-7 wire (Chamber door open) Wire 4.3e-7 wire Total suppression within 200 pixel radius = 8.8e-006

13. 6/19/09 Image27- 600sec 5.05e-010

14. NWO Mission Overview

15. Starshade Design and Fabrication Enabling Technologies • Precision Shape Control • Maintain edge position • Maintain structure shape • Thin Edge Treatment • Maintain edge stability • Minimize stray light • Precision Deployment • Minimize jitter • Maintain petal location • Opaque Membrane • Maintain opacity • Lightweight • 2 Axes Formation Flying • Maintain 1m alignment • Minimize jitter • Solar Electric Propulsion • NEXT engine • Increase observable targets • Reduce propellant mass • Lightweight S/C Structures • Increase observable targets • Reduce overall mass Enhancing Technologies

16. Starshade Alignment Systems See Telescope from Starshade See Starshade From Telescope

17. United States Naval ObservatoryJoint Milli-Arcsecond Pathfinder Survey • Instrument Parameters: • 7.5”, f/20 ultra-low-distortion optical/NIR astrograph telescope • SiC optics, metering structure • Advanced, large format CMOS Hybrid FPA • Gratings for color sensing • Mass ~ 40kg • Power ~ 85W • Objectives and Description: • Fully Funded mission ready for December 2011 launch • Dedicated, high-accuracy astrometric instrument • Single measurement precisions (narrow field) of 5 milli-arcseconds from 0-16 mag. • 1 milli-arcsecond global accuracy over 3 year mission life • JMAPS Mission Goals: • Update star catalogs, viable for decades • Demonstrate 10mas attitude determination on-orbit • Mature critical optical and FPA technology • NWO Formation Flying Solution: • State of the art optics and detector technology permits high accuracy astrometry—critical for NWO formation flying • Updated stellar catalog in time for NWO JMAPS TIMELINE

18. GRC: NEXT Ion Propulsion System • Starshade Spacecraft requirements strongly favor use of electric propulsion to maximize science • NEXT ion propulsion system provides greatest number of targets with the simplest system configuration compared to other EP options • Thruster performance and lifetime capabilities provide significant flexibility in implementing primary and extended mission operations • Critical elements of a NEXT system are planned to achieve TRL6 under the NASA SMD In-Space Propulsion Technology Project • NEXT can be implemented on NWO with low risk through planned transition-to-flight development

19. The Top Technology Tall Poles for NWO NWO TALL Poles • Starshade optical performance simulation and validation • Starshade deployment and shape maintenance • Trajectory and Alignment Control (TAC) system • Both sensors and control algorithms • 4m telescope design and high sensitivity detectors

20. NWO Technology Development Roadmap

21. NWO Study http://newworlds.colorado.edu This is what a multi-billion dollar flagship should be. Engage the public like Voyager and Hubble Unify the astronomy community ANSWER THESE QUESTIONS: ARE THERE HABITABLE PLANETS IN THE UNIVERSE? IS THERE LIFE IN THE UNIVERSE? Other, lower cost missions, should support this goal without slowing it down.