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Center for Adaptive Optics Spring Retreat 2006




DATES: Monday - Friday, 27-31 March 2006

LOCATION: UC Santa Cruz, Center for Adaptive Optics (CfAO)
The San Jose Airport (SJC) is the closest airport to Santa Cruz. You may also fly into the Oakland or San Francisco Airport.


The CfAO Spring Retreat will consist primarily of consecutive workshops. Lodging will be off campus, and participants will book their own rooms. Please go to the end of the web page for details about lodging, air, parking, ground transportation, and travel reimbursement.

Monday, 27 March:
----Analysis, Modeling, and Simulation for AO for ELTs, Day #1 (Continues on Tues.)

Tuesday, 28 March:
----Analysis, Modeling, and Simulation for AO for ELTs, Day #2

Wednesday, 29 March:
----Institute for Scientists and Engineer Educators (ISSE): Morning Session Only
----Visible Wavelength AO for Astronomy, full day
----Image Processing Workshop for Vision Science, Day #1: (Begins in the late Afternoon) Continues on Thurs and Fri
----Plenary Session speaker Steve Vogt and dinner in the evening

Thursday, 30 March
----Hawaiian Educational Initiatives: Morning Session Only
----Restructuring and Planning Internships beyond CfAO: Afternoon Session only
----Next Generation Keck AO: Afternoon Session of Day #1
----Imaging Processing Workshop for Vision Science, Day #2 (Full Day)

Friday, 31 March
----Next Generation Keck AO: Morning Session of Day #2
----Imaging Processing Workshop for Vision Science, Day #3 Morning Half Day Session




Education Workshop #1--Wednesday, 29 March:

Institute for Scientists and Engineer Educators (ISEE): Identification of the most compelling intended outcomes


The CfAO and the Center for Informal Learning and Schools (CILS) are currently engaged in activities aimed at enhancing teaching practices of graduate students, postdoctoral researchers, and other professionals. Both centers are now exploring the formation of the Institute for Scientist and Engineer Educators (ISEE) to formalize and institutionalize the most successful components of each center. A key element in moving forward is to identify outcomes that will be convincing to stakeholders, and potential stakeholders, that are essential to long term sustainability. The goal of this session will be to discuss the most compelling outcomes from the CfAO Professional Development Workshop and the CILS Science Fellows Program, which could become the planned outcomes for ISEE. For example, participants:

---Incorporated inquiry-based teaching into courses/programs
---Changed their teaching practices
---Gained valuable professional skills

Education Workshop #2--Thursday, 30 March, 9am-12:

Hawaiian Educational Initiatives

The CfAO has developed a range of educational programs in Hawaii, with a primary focus on advancing college students into technical career pathways related to observatories and the high tech industry. This session will focus on the engineering technology degree programs under development at Maui Community College, Hawaii Community College, and Kauai Community College, and how existing CfAO programs can complement these new degree programs. We will discuss the Akamai Internship Program, CfAO Short Courses, and new ideas for broadening student participation, particularly to increase participation of students from underrepresented groups. We will also explore mechanisms for facilitating involvement of scientists and engineers in course development and teaching.

Education Workshop #3 Thursday, 30 March:

1:00 - 2:00pm Restructuring and Planning Internships beyond CfAO

2:00 - 3:00pm Education meeting topics to be determined as needed, or as identified earlier in the day.

THEME 2: TWO ELTs WORKSHOPS--27-29 March, 2006


ELTs Workshop #1 Monday and Tuesday, 27-28 March: A 2-day Analysis, Modeling, and Simulation of AO for ELTs workshop (5'th annual)


Topics for AMS would closely follow last year's (See below). We will have new input on ELT system designs due to the TMT, GMT, and KPAO projects maturing. Speculation for the future generation of even more complicated and elegant AO systems is the topic of the VWAOA workshop.


-- Fast tomography algorithms ---Hardware implementation of wavefront reconstructors / controllers ---Incorporating site information (Cn2 or Na profile)

Laser guidestar constellations to maximize tomographic information per Watt AO relay optical design

---Internal calibration and alignment ---Accounting for aberration of LGS beam

---Models for thermal emissivity of the AO system and sky background

NGS Tip/Tilt/Focus sensing

---Sky coverage calculations

Wavefront sensing

---Linear WFS ---Spatial Filtering ---Pyramid Sensing ---LGS elongation ---Methods for accounting for rapid changes in the sodium layer profile ---Calibrating for Rayleigh backscatter

Astrometry/Photometry, Strehl stability and accuracy

---Deformable mirrors ---Stroke requirements ---Repeatability/linearity ---Woofer/tweeter offloading ---Influence function modeling, particularly for MEMS and adaptive secondaries

ELTs Workshop #2 Wednesday, 29 March: A new 1-day workshop on Visible Wavelength Adaptive Optics for Astronomy.


New technology developments could significantly break the cost curve of complex AO systems and could lead to the possibility of VWAO on 8-10 meter class telescopes in the near future. This workshop will be dedicated to exploring the possibilities, techniques, and needs for future generation AO systems, for example:
---Special problems in high order high speed wavefront sensing and correction, laser guidestar tomography, and sky coverage with natural tip/tilt/focus stars. ---Development of experiments to prove concepts and technologies needed for VWAO.


PLENARY SESSION: Wednesday, 29 March 6:00 pm

Distant Worlds: The Hunt for Planets around Other Stars

Steve Vogt
UCO/Lick Observatory
U.C. Santa Cruz


There are currently over 180 known extrasolar planets, the vast majority discovered through detection of periodic barycentric reflex motion of the planet's host star via high-precision Doppler radial velocity measurements. The California-Carnegie Extrasolar Planet Search Program is one such precision Doppler-based planet survey. It is currently monitoring over 1330 nearby F,G,K, and M stars for planets at 2-3 m/sec precision, and has contributed over 70% of the presently-known exoplanets. These extrasolar planetary systems display an unexpected diversity of orbital period, size, and eccentricity, and the emerging database is providing new insight into the origins and evolution of planetary systems. This talk will give a brief review of the California-Carnegie Exoplanet Search program, reviewing details of the detection method, and the current push toward detection of earth-mass rocky planets.


THEME 2: NEXT GENERATION KECK AO-- 30-31 March, 2006

Overall description and goals for this workshop:

The Keck Observatory is planning for its Next Generation AO System (NGAO).

The Keck AO Working Group has accordingly established four sub-committees to delineate the science case and to lay out the technical options and their expected performance. At the CfAO Spring Retreat March 30-31 '06, we will bring together members of the Technical and Science Instrument Sub-committee, the Solar System Science Sub-committee, the Galactic Science Sub-committee, and the Extragalactic Science Sub-committee, along with interested external experts.

Goals for the Workshop include the following:
Provide a description and update on the developing science cases;
Lay out the technical options for AO systems and instruments;
Describe simulation and modeling products needed to further advance the science cases;
Encourage a dialogue between the technical and science working group members, so that each may develop a better working understanding of the analysis tools and science requirements.

A proposal for the Keck Next Generation AO System is planned to be completed by June '06 for review by the Keck Science Steering Committee. Outcomes of the Workshop should materially aid proposal development.


Technical & Science Instrument Overview for Science Case Subcommittees--A. Bouchez, R. Dekany, R. Flicker, D. Gavel, D. Le Mignant, B. Macintosh, K. Matthews, C. Neyman, P. Wizinowich

Planning for Next-Generation Adaptive Optics at Keck --Antonin Bouchez, Rich Dekany, David Koo, Mike Liu, Bruce Macintosh, Franck Marchis, Keith Matthews

Extragalactic Sub-Committee, Keck NGAO --Claire Max, Tommaso Treu, Aaron Barth, David Koo, Chuck Steidel, Richard Ellis, Rich Dekaney

Keck NGAO Galactic Science Subgroup --Stanimir Metchev

Keck Next-Generatiion AO: Galactic Science -- Michael Liu (chair), Andrea Ghez, Tom Greene, Lynne Hillenbrand, Jessica Lu, Bruce Macintosh, Stan Metchev, Nevin Weinberg

NGAO: Solar System Science Cases --F. Marchis (UC-Berkeley), Members: A. Bouchez (Caltech), J. Emery (NASA-Ames), K. Noll (STSCI), M. Adamkovics (UC-Berkeley)

Next Generation AO for the Galactic Center --Jessica Lu, Team: Andrea Ghez, Nevin Weinberg, Jessica Lu

Protostars and Keck AO --Lynne A. Hillenbrand


Day 1. Thursday, March 30. 1:00-5:30 pm.

Approach and goals:
Thurs PM session to be led by the Science Sub-committee chairs. Purpose: to better educate the Technical Committee and the other science sub-committees on the science cases and on what kinds of technical analyses and simulations are needed to support these cases.


1:00 Welcome and overview of goals & agenda. Claire Max/Mike Liu

1:10 Overview of Next-Generation AO options; the context of its development; the competition. Claire Max/Mike Liu/Peter Wizinowich

1:30 Description of the proposal that is due in June, and its contents, including overview of non-science parts of the proposal (content, status, timeline). Peter Wizinowich

1:45 Introductory remarks on science case development. Mike Liu

1:50-3:45 Discussions by chairs of science topic subcommittees.

Each talk should lay out the science cases, plans for future simulations and analysis a propos of each science case, AO system requirements (Strehl vs wavelength, sky coverage, emissivity, etc.), instrument preferences & requirements.

1:50 Overview of solar system science part of the proposal. Franck Marchis

2:20 Overview of galactic science part of the proposal. Mike Liu

3:00 Break

3:15 Overview of extragalactic science part of the proposal. Claire Max

3:45 Science Instrument discussion. Rich Dekany.

Summarize instrument requirements/requests from the three science subgroups. Determine overlap, if any. Think about other potential instruments that science teams may have overlooked. Review critical risk elements for each instrument: what's fairly straightforward, what's difficult, potential costs, development times.

4:10 Priorities for technical team discussion on Friday. What has come out of today's discussion that we should follow up on tomorrow? Mike Liu/Claire Max/Peter Wizinowich

5:30 Done for the day

Day 2. Friday, March 31. 8:30 am-12:30 pm

Friday AM session will be led by the Technical and Science Instrument Subcommittee chair.

To have a dialogue with the Science sub-committees about what they need from the technical subcommittee; what the technical subcommittee has produced to date that is relevant; and what remains to be done.

To understand what goes into the simulations that are requested.

To try to "join" the requests from the separate subcommittees; to narrow down and prioritize the range of simulations being requested.

To discuss the simulation tools, including their assumptions, general methods, and limitations.


8:30 Welcome + overview of goals & agenda. Peter Wizinowich

8:40 - 11:15 Session topic:

Describe the scope of the AO design and computer simulation problem. Describe the set of simulation tools that are available, including assumptions and limitations of each, as well as expected computing time for a typical problem.

Describe what specific AO systems concepts have been analyzed, what inputs are well-known and not well-known, what sorts of outputs can the science teams expect.

8:40 Describe the scope of the design and modeling simulation problem. Peter Wizinowich

9:00 Describe the full set of simulation tools that are available, including assumptions and limitations of each, as well as expected computing time for a typical problem. Don Gavel

9:30 Describe what specific AO systems concepts have been analyzed, what inputs are well-known and not well-known, what sorts of outputs can the science teams expect (e.g baseline PSFs and expected variants due to seeing changes, off-axis, tip-tilt star properties, etc). Chris Neyman

10:15 Break

10:30 Simulations and AO architectures for faint companions to bright stars. Bruce Macintosh

10:45 AO architecture options for NGAO. Rich Dekany

11:15-12:30 Discussion

Priorities for technical committee (from science sub-groups);
Priorities for science sub-groups (from technical committee);
Planned and desired simulation products;
Develop a detailed plan and timetable to get this work done by June deadline;
What resources are we missing to finish this work?
How should we proceed to harness the needed resources (people, computer codes, computer time, etc) ?
Review conclusions.

12:30 Workshop concludes


(Events will start in mid to late afternoon on Wednesday March 29 and will end in early afternoon March 31)

Wednesday-Friday, 29-31 March: A three-day Image Processing Workshop for Vision Science


This workshop will be an opportunity to see, share and obtain software for your image processing needs. On Thursday morning various groups will be asked to demonstrate their software. On Thursday afternoon we will have a Software Workshop and Swap Meet where you will be able to download and test different software packages, as well as discuss their potential applications with their developers.Other tentative activities will be:

Joint activities with other concurrent workshops
Tutorials on some aspects of image processing
Guest speakers.
Discussions about potential joint CFAO image processing projects
Discussion about future and current image processing needs.

Fly into the San Jose International Airport

Car Rental:
Please Schedule Your Flight So That You Can Share A Ride.

Yahoo (Travelocity): http://travel.yahoo.com/?qs=c
Orbitz: http://www.orbitz.com/App/DisplayCarSearch

Car Rental Instructions for University of California academics and staff:
The University of California will not reimburse for added car insurance when you rent a car, so if you don't personally have insurance that covers car rentals, the University has negotiated car rental agreements (for UC staff & students only) with several car rental companies that include insurance. University agreements cover any damage sustained by the rental vehicle and provide increased liability coverage. In order to be covered you must identify yourself as a University employee on University business and provide the applicable UC ID# found at the following web site.


Set the Commodity Type to Car Rental and leave keywords blank.
Car rental prices will vary with the UC car rental agreements.


The UC Santa Cruz campus requires parking permits on campus. Here are the instructions about how to pick up a parking permit:

If you are attending the Spring Retreat beginning on Monday, 27 March:
Drive directly to the parking structure (see directions at http://cfao.ucolick.org/center/directions/) There will be an attendant on the 2nd or 3rd level between 7AM - 9 AM. You can purchase a multi-day permit from the attendant. The CfAO will reimburse you for the charges. Bring cash. The cost is $5/day.

If you are attending the Spring Retreat beginning on Tuesday, 28 March:
Stop at the kiosk just past the main entrance of campus and let the attendant know that you are attending a Center for Adaptive Optics event and would like a prepaid parking permit. The kiosk attendant only issues daily permits.

If you are attending the Spring Retreat beginning on Wednesday, 29 March:

Go to the Coast Santa Cruz Hotel between 7AM and 8:30 AM. I will be distributing as many daily permits as you need for the Spring Retreat. If you miss me, you can pick up a permit at the kiosk, just past the main entrance of campus and let the attendant know that you are attending a Center for Adaptive Optics event and would like a prepaid parking permit. The kiosk attendant only issues daily permits.

If you are attending the Spring Retreat beginning on Thursday 30 March:
Stop at the kiosk just past the main entrance of campus and let the attendant know that you are attending a Center for Adaptive Optics event and would like a prepaid parking permit. The kiosk attendant only issues daily permits.

If you are attending the Spring Retreat beginning on Friday, 31 March:

You do not need a parking permit to park in the parking structure, as 31 March is an administrative holiday. Do not park in any spot that is marked "reserved".

Participants will book their own rooms and CfAO members will be reimbursed for expenses. You may stay in any of the approved lodgings, but we encourage participants to stay at the Coast Santa Cruz Hotel. Please go to the following web site for lodging and directions:


You will be reimbursed for travel and lodging. Reimbursement forms will be provided for you at the Spring Retreat. Air Travelers: please book your flights as soon as you register to take advantage of inexpensive flight rates. Remember to save your original receipts.

Please email Paula at cfao@ucolick.org if you have questions, or phone her at 831-459-5592
Fax 831-459-5717

Last Modified: Jul 18, 2007 

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