1. Exo-Planet Task Force (ExoPTF) Stephen Ridgway (NASA) Dana Lehr, Michael Briley (NSF) Garth Illingworth (AAAC)

2. S. Ridgway - AAAC - 10/12/062 Publications and Planets

3. S. Ridgway - AAAC - 10/12/063 One year of ExoPlanet Conferences October 16 - 18, 2006 –6th workshop of the European Astrobiology Network Association –Lyon, France October 23 - 27, 2006 –From Brown Dwarfs to Planets –Leiden, Neederland November 06 - 10, 2006 –TPF/Darwin Workshop –Pasadena, CA, USA December 04 - 08, 2006 –Disks, Winds, and Jets: From Planets to Quasars –Mount Stromlo Observatory, Canberra, Australia December 27, 2006 - January 05, 2007 –The Lives of Low-Mass Stars and their Planetary Systems –Jerusalem, Israel January 05 - 06, 2007 –Evolution and Exploration of Solar Systems –Irvine, CA, USA January 07 - 11, 2007 –209th AAS Meeting –Formation and Detection of Habitable Planets session –Next Generation Radial Velocity Planet Surveys session –Seattle, WA, USA January 15 - 17, 2007 –Gravitational Microlensing Workshop –Daejeon, Republic of Korea February 19 - March 03, 2007 –Winter School on Extrasolar Planets & Astrobiology –Split, Hrvatska March 05 - 08, 2007 –ESO Workshop on Observing Planetary Systems –Santiago, Chile April 11 - 14, 2007 –From Stars to Planets: Connecting our Understanding of Star and Planet Formation –Gainesville, FL, USA May 28 - June 08, 2007 –Summer School: Circumstellar Disks and Planets at Very High Angular Resolution –Porto, Portugal June 09 - July 06, 2007 –Summer School on Extrasolar Planets and Brown Dwarfs –Castel Gandolfo, Rome, Italia June 22 - 24, 2007 –Transformational Science with ALMA: Through Disks to Stars and Planets –Charlottesville, VA, USA June 24 - 29, 2007 –Extreme Solar Systems –Santorini, Hellas July 17 - 20, 2007 –Bioastronomy 2007: Molecules, Microbes, and Extraterrestrial Life –San Juan, Puerto Rico October 01 - 05, 2007 –From Planets to Dark Energy: the Modern Radio Universe –Manchester, UK October 15 - 19, 2007 –IAU Symposium 248 : A Giant Step: From Milli- to Micro- arcsecond Astrometry –Shanghai, Popular Republic of China October 22 - 26, 2007 –IAU Symposium 249: Exoplanets: Detection, Formation and Dynamics –Suzhou, Popular Republic of China

4. S. Ridgway - AAAC - 10/12/064 IAU Colloquium 200

5. S. Ridgway - AAAC - 10/12/065 Active ExoPlanet/Exosystem Observational Programs Radial velocity monitoring Transit searches Microlensing YSO’s, preplanetary and debris disks

6. S. Ridgway - AAAC - 10/12/066 Recent Results for ExoSystems Many detections Rich variety of exosystems Multi-planet systems Lower masses Closer to solar system analogues Potentially Earth-like planets may be common

7. S. Ridgway - AAAC - 10/12/067 Status of Major NASA ExoPlanet Missions Kepler - exoplanet study by transits –Statistics of short-period planets - down to Earth-size –In implementation SIM - exoplanet study by astrometry + astrophysics –Detection of nearby candidate Earth-like planets –In formulation –Advanced stage of engineering readiness –Currently delayed - engineering/prototyping/science preparation continues TPF - exoplanet study by spectroscopy; astrophysics –Direct study of candidate Earth-like planets –In pre-formulation –Key (enabling) technical demonstrations completed in infrared interferometry and visible coronagraphy –Currently deferred - technical/scientific development continues Navigator

8. S. Ridgway - AAAC - 10/12/068 Astronomy and Astrophysics Decade Review 2007 - 2010 AAAC ExoPlanet Task Force 2006 - 2007

9. S. Ridgway - AAAC - 10/12/069 The ExoPTF Charge (draft) This letter is to request that the AAAC establish an Exo-Planet Task Force as a subcommittee to jointly advise NSF and NASA on the future of the search for and study of exo-planets, planetary systems, Earth-like planets and habitable environments around other stars.

10. S. Ridgway - AAAC - 10/12/0610 The ExoPTF Charge (draft) The ExoPTF is asked to recommend a 15-year strategy to detect and characterize exo-planets and planetary systems, and their formation and evolution, including specifically the identification of nearby candidate Earth-like planets and study of their habitability. The strategy may include planning and preparation for facilities and missions beyond the 15-year horizon.

11. S. Ridgway - AAAC - 10/12/0611 The ExoPTF Charge (draft) 1.The key scientific questions and issues, in the context of recent developments in exo- planet science and planet formation; 2.Measurement techniques, their enabling technologies, and their implications for future survey and measurement directions and priorities; 3.Specific types of experiments (e.g., radial velocity measurements, transit searches, microlensing, adaptive optics, coronagraphy) with respect to their expected scientific return and contributions; 4.The potential and complementary science return from measurements at different wavelengths; 5.Major decision points in the exo-planet study process; 6.Important steps, precursor instrumentation on the ground or in space, R&D, and other work required in preparation for, in support of, or alternative to, these and related experiments and missions; 7.Identification of the nature and scope of investments in key technologies relevant to the scientific goals of the program; 8.The complementary ground-based and space-based research opportunities, coordination between funding agencies and possible synergistic advances; 9.Opportunities for cooperation, coordination or synergy with international programs, such as the Darwin mission at the European Space Agency, or the Ground-based European Nulling Interferometer Experiment (GENIE) and Very Large Telescope Interferometer (VLTI) projects at the European Southern Observatory; 10.Cost effectiveness and affordability.

12. S. Ridgway - AAAC - 10/12/0612 Notional Schedule Dec 2006 - First telecon, invite white papers, form working groups Jan 2007 - briefings and discussion Mar 2007 - briefings and discussion May 2007 - recommendations, report outline, assignments July 2007 - recommendations and writing Sept 2007 - review, wordsmithing, concurrence Oct 2007 - deliver report