The Future of AO at Keck Sept 2004 Mike Brown, for the AOWG and Keck AO team.

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Presentation transcript:

The Future of AO at Keck Sept 2004 Mike Brown, for the AOWG and Keck AO team

Your friendly AOWG Mike Brown, Mark Colavita, Rich Dekany, Andrea Ghez, James Larkin, Mike Liu, Bruce MacIntosh, Keith Matthews, Claire Max, Mitch Troy Talk to us about all of your AO needs, concerns, hopes, and fears Completely unrelated reminder: LGS is not a bright time instrument

From current strategic plan… 20 yr plan “all AO all the time” Specific: “diffraction limited from 400nm to 10 um with Strehl>0.6 a significant fraction of the time on both telescopes” Vague: Field-of-view? Resolution? Instrumentation? Observing modes? Science drivers? Much to still be figured out!

The landscape of potential AO systems Wide-field high angular resolution (MCAO, MOAO) Wide field moderate angular resolution (GLAO) Extremely high-contrast (bright objects only) Extremely high Strehl (all sky/ single objects) Low emissivity (thermal IR) IR WFS/TTS

The landscape of potential AO instruments log R wavelength

The landscape of potential AO instruments log R wavelength Field size, # units

The AOWG strategic plan Strategic planning meeting, Fall 2002 Main ~7 yr recommendations: – Optimize current NGS+LGS AO – Develop high-precision AO – Deploy high-contrast AO system

Optimize current NGS+LGS AO $2M Keck foundation grant to implement new WFC Currently underway Will increase Strehl on NGS targets and allow fainter NGS Should increase Strehl for LGS targets

Keck precision adaptive optics (KPAO) AOWG vision is that high Strehl, single-object, AO will be the most important competitive point for Keck AO in the next decade Currently envisioned as multi-laser, single (?)- DM AO system deployed in front of OSIRIS, capable of extending correction to visible Will deliver 120 nm wavefront error (same as spec for TMT), which gives Strehl ~ 0.9 at K Expected [hoped] to be funded entirely externally

High contrast imager (XAOPI) Extremely high Strehl and contrast imaging system for bright (I<8) targets Capable of finding large distinct population of warm outer exoplanets Philosphical shift from [allegedly] general purpose instruments, potentially different funding strategy

Currently in process Planned for FY04/05 Funded! Underway Slipped! Should start in earnest with C. Neyman devoted full- time to project 14 more years to go to reach “all AO all the time” NSF-funded laser K1

A new model for funding of instrument development If large facility class instruments are scientifically important and exciting, they could be among the first things to capture external funding (NSF laser, NIRES, WFC upgrade) Future AO instrument development is envisioned to operate largely on external [non-Keck, non- TSIP] funds with help of UC & Caltech development offices Perhaps a healthy alternative to TSIP for all major instrument development

What I want from you [yes you] AOWG is meeting tomorrow to refine strategic plans Your input matters in deciding which areas will be pursued Talk to your favorite AOWG member. Soon.