1. Future of the GMT Warrick Couch Swinburne University Centre for Astrophysics and Supercomputing GMT2010: Opening New Frontiers with the Giant Magellan Telescope

2. “the GMT project is anticipated to bring a quantum jump in the development of Korean astronomy.” “The goal of this workshop is to review the current status of the GMT project and to discuss sciences, instruments and some of the technical challenges for the GMT.” Purpose?

3. Purpose of this meeting GMT2010: Opening New Frontiers with the Giant Magellan Telescope “Several new partners joined the project including Korea, where the involvement in the GMT project is anticipated to bring a quantum jump in the development of Korean astronomy.” “Another recent important milestone is the selection of 6 first- generation instrument concepts. It is time to prepare strong science cases for these instruments” “The goal of this workshop is to review the current status of the GMT project and to discuss sciences, instruments and some of the technical challenges for the GMT.”

4. Status of the GMT project – slide from Pat

5. SCIENCE – no shortage of ideas and drivers for GMT, some of which will be transformational! Disks and planets −debris disks (Song); transitional systems (Lyo) First objects in the universe −QSOs as probes (Im); 1 st stars relic signature (Ahn); testing expansion using LSS topology (Rossi) Stars and the ISM −stars with planets (Kang); ISM around SNRs/YSOs (Shinn); SNR shock filaments (Lee) Galaxies, AGN, Cosmology −LSS/galaxy evoln (Park); MBH/galaxy evoln (Woo); massive galaxy formation (Yi); Lyα blobs (Yang); N-F cosmol (M-G Lee, An); LRSI (J Lee); glob clusters (Y-W Lee, J-W Lee); cluster gal evoln (Lee, Kim) Plus 11+ posters in most of these areas!

6. SCIENCE – important synergies GMT will have with other major telescope facilities JWST (Mark Clampin) [launch ≥ 2014] −Will win hands down on broad-band imaging over NIR and MIR regions −GMT wins in terms of spatial resolution (@DL) and sensitivity for R>1000 NIR spectroscopy ALMA (Nagayoshi Ohashi) [2012] −Molecular gas content and thermal dust emission measurements of importance to ALL science areas/targets of interest to GMT −Diffraction-limited spatial resolution of GMT well matched to that of ALMA (~20mas in K) GMT’s southern hemisphere location will also mean strong synergies with LSST and SKA

7. INSTRUMENTS – the ‘vehicles’ for realizing our scientific aspirations and whose capabilities are determined accordingly! GMACS (DePoy) NIRMOS (Fabricant) GMTNIRS (Jaffe) GMTIFS (McGregor) Hard choices will have to be made – essential the GMT partnership is very clear on its scientific priorities & the best instrument choices given GMT design & competition G-CLEF (R=20,000-150,000 optical spec) TIGER (Mid-IR imager with coronagraph) MANIFEST (MANy Instrument FibrE SysTem) AO GLAO

8. TECHNICAL CHALLENGES Two key areas: (1)Mirror design and fabrication M1 (7 x 8.4m) – can we produce off-axis segments; can we do it fast enough? M2 (7 x 1.1m ASM’s) – build and integrate to work in concert with M1 segments? (2)Adaptive Optics (NGS, LTAO, MCAO, ExAO) Obvious complexity! Segment piston error – phase of the incoming wavefront cannot be measured between M1 segments

9. CAUSE FOR OPTIMISM “Ground‐layer AO with an adaptive secondary is now a demonstrated image sharpening technique with enormously broad application.” – M. Hart

10. The future of GMT – other challenges ahead

11. (from Pat McCarthy) Many key challenges & decision points during this period

12. Main challenges & decisions looming: Primary mirror segment production −Need to produce remaining 6 segments in 8 yrs (avg: 1 per 16 months) to make mid-2019 deadline Instrument selection −We cannot have them all; will need to down-select 2-3 as ‘first light’ instruments – which ones??? Preliminary Design Review −Revised and more accurate construction costing −Outstanding risks yet to be retired?

13. Main challenges & decisions looming: Funding −35% of funding required for GMT construction raised; but remaining 65% still to be found −What fraction of total construction budget needs to be raised before construction can begin? −Cost/danger of sustaining/losing ‘marching army’ Partners −GMT partnership 85% subscribed −Intentions of US NSF re GMT involvement? −Implications of US Decadal Survey (ASTRO2010)?

15. 15 Key Members or The Project Team Matt Johns Project Manager Steven Dolmseth CFO George Jacoby Instrumentation Scientist Antonin Bouchez AO Scientist Michael Ward Lead Systems Engineer Steve Shectman Project Scientist Steve Gunnels Lead Mechanical Engineer Jose Filgueira Lead Controls Engineer

16. GMT Adaptive Optics Team Antonin Bouchez GMT AO Scientist Palomar AO System Michael Hart MMT ASM, GLAO Phil Hinz LBTI PI, MMT AO Olivier Guyon Subaru AO Lead Marcos Van Dam AO Consultant

17. GMT Institutions Harvard Carnegie Texas A&M ANU KASI U. Arizona LCO SAO U. Texas Austin AAL (2008) (2010) ??? GMT Workshops

18. Finally, some thanks are in order: Myung Gyoon Lee for chairing the SOC Myungshin Im (Chair) and his LOC team: Sang Chul Kim, Young-Soo Kim, Jeong-Eun Lee, Soojong Pak, Jong-Hak Woo Seoul National University and KASI for sponsoring the meeting Seoul National University for hosting the meeting

19. First Science Results with the GMT Dr Nextgen Astronomer Centre for Astrophysics and Supercomputing 2020 Swinburne Astronomy Public Lecture Series