CFHT , Instruments , Imaging , AOB , Workshop

PUEO NUI Workshop

held at the

Laboratoire d'Astrophysique de Grenoble (LAOG), France

on

22-23 May 2003


May 25th 2004 - Deadline for On-line proceedings: June 15th 2004.

Organizing Committee:

Olivier Lai (CFHT), François Ménard (LAOG), David Bohlender (HIA),
Jean-Charles Cuillandre (CFHT), Eduardo Martin (IfA) & Jean-Luc Beuzit (LAOG)

Primary Contacts:

LAOG Local Organizer: François Ménard (Francois.Menard@obs.ujf-grenoble.fr)
CFHT Primary Contact: Olivier Lai (lai@cfht.hawaii.edu)

Contents

Workshop Organization and Registration

At the request of the CFHT Scientific Advisory Council, CFHT staff and Pueo Nui enthusiasts have organized a Pueo Nui Workshop to be held at the Laboratoire d'Astrophysique, Grenoble, France on 22-23 May 2003. The goal of the workshop is to encourage discussion of science drivers, technical requirements, and the possible instrument suite for Pueo Nui, as well as to discuss the timeliness of this project with respect to other high-resolution imaging projects being pursued at other major astronomical facilities.

To register, simply contact Dr. François Ménard (LAOG) directly at the following email address: Francois.Menard@obs.ujf-grenoble.fr . Please use if possible the following title to help him sort things out easily: "PUEO NUI Workshop Registration". The registration email should at least contain your full name and institution.

Note that because of space limitations, participation in the workshop will be limited to approximately 70 attendees. Please do register only if you are sure to attend so we don't end up missing some participants - thank you for your understanding.

This is a workshop between us, the community, and we rely on your willingness to take care of your travel and lodging arrangements. Participants are kindly asked to make their own hotel bookings. F. Ménard kindly pre-booked 10 rooms in each of the following hotels (Hotel de l'Europe, Hotel Touring - just mention you're from the Observatoire de Grenoble and you're on), see the "Hotels" section in this page to book a room with them directly (a total of 6 hotels are listed).

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Project Description

PUEO NUI is a proposed upgrade of the CFHT Adaptive Optics Bonnette. The current performance of the 19 degrees of freedom system is a delivered Strehl ratio of around 60% in K band (40% in H, 20% in J) and modest seeing improvement in the visible. The proposed upgrade would increase the numbers of degrees of freedom to approximately 100 and is expected to provide Strehl ratios >90% in the K band and diffraction limited performance down to the R band (Strehl ~ 40%, FWHM ~ 40 mas). Even performance in V band, while not diffraction limited, would allow resolutions of 30 mas. The PSF in the infrared would also be much more stable as the variations of the Strehl ratio are proportional to the amount of uncorrected phase. This set of performance opens up the field of high dynamic range imaging by providing exquisite and stable image quality, required by phase coronographs and other PSF subtracting techniques. The limiting magnitude of such a system is necessarily degraded, and it is expected that the maximum performance limiting magnitude will be around 7 or 8. Fortunately, the faint limiting magnitude will not be altered by this upgrade with respect to PUEO, so the current faint guide star science will still be available.

More information on PUEO NUI can be found in the following papers in PDF format (they look good when printed):

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Motivation

Astronomical adaptive optics is currently developing in two seemingly orthogonal directions: Multi-conjugate adaptive optics, and High dynamic range AO. Both of these techniques seek to further performance of AO against its main limitations, namely sky coverage for the former, and unstable PSFs or partial correction for the latter. These directions are not as orthogonal as they first appear as successful demonstration of both of these techniques is indeed a requisite for the adaptive optics systems of future giant telescopes. MCAO actually gets easier on larger telescopes (the requirements on guide stars for the tomography decreases with the size of the telescope) while HDRAO, in some ways, benefits from smaller telescopes for obvious reasons, as the number of degrees of freedom goes as D^2 but also for less obvious ones such as the possibility of using a laser guide star to compensate for the low maximum performance magnitude.

High dynamic range (and visible) AO projects are being proposed for the VLT and Keck telescopes. The main advantage of going to large telescopes is that the achievable contrast at a given distance from the guide star - everything else being equal - depends on D^2. However, these will be instruments with tens of thousands of degrees of freedom, that will certainly require new technology. One of the strong drivers for PUEO NUI is therefore to ensure that there are no fundamental limitations to High Dynamic Range AO - or that if there are, they are identified early and corrective procedures can be applied to the larger instruments.

But the main purpose of PUEO NUI is not to be a demonstrator or a test bench for Extreme AO, but indeed to be an instrument in its own right. The performance obtained through simulations demonstrates that several forefront science areas would benefit tremendously from a better corrected PSF, or access to shorter wavelengths. Also, new instruments such as phase cornographs or multi-wavelength imagers benefit and/or require very high Strehl ratios to produce significant science.

It has therefore been suggested to gather interested parties, experts and potential users of the Canadian, French and Hawaii communities for a workshop, to discuss whether, given the current orientation of the 4 meter class telescopes, and CFHT in particular, such an upgrade of PUEO would be warranted. This decision should guided by the community of users with expertise available from the potential developers.

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Program

Laboratoire d'Astrophysique, Grenoble, France
Large Conference room (max attendance at LAOG: 70 persons)


DAY 1: May 22nd, 2003  ( 10h00 -> 18h15 )
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^



10h00 - 10h05: Welcome: Director of LAOG ( Montmerle / LAOG )  

10h05 - 10h10: Introduction: as viewed from the Board of Directors
                     ( Rouan / Meudon ) 

10h10 - 10h20: Introduction: Director of CFHT  ( Veillet / CFHT )


I- PUEO NUI and its environment
   ----------------------------

10h20 - 11h00: Description of PUEO NUI and numerical simulations of
              expected performances   ( Lai / CFHT )



11h00 - 11h15: coffee break
     ( 11h00-12h00 -> Seminar at IRAM by Gaspard Duchene UCLA )



11h15 - 11h35: Stability of telescope  ( Puget / CFHT ) 
				
11h35 - 11h55: Cameras available/ need for new ones  ( Cuillandre/CFHT )

11h55 - 12h15: Gain for OHANA  ( Woillez / Meudon ) 




12h35 - 14h00: Lunch Break




II- Science DRIVERS for PUEO NUI:
    -----------------------------



- Extra-Galactic Science


 13h45 - 14h05:  QSO host galaxies  ( Petitjean / IAP ) 

 14h05 - 14h25: Deep fields near bright stars  ( Soucail / OMP )



- Galactic Population, Structure and Dynamics


 14h25 - 14h45: The Galactic center  ( Maillard / IAP )



- Stellar Physics / Galactic population


 14h45 - 15h05: Very Low Mass Stars and Brown Dwarfs ( Liu / IfA )

 15h05 - 15h25: Fundamental Stellar Parameters  ( Beuzit / LAOG )



- Star and Planet Formation


 15h25 - 15h45: Exoplanets  ( Lagrange / LAOG )

 15h45 - 16h05: Debris disks  ( Augereau / Leiden )

 16h05 - 16h25: Protoplanetary Disks around solar like stars  
                        ( Menard / LAOG )



16h25 - 16h55: coffe break



 16h55 - 17h15:  Mass-Loss in YSO's  ( Dougados / LAOG )

 17:15 - 17h35: PMS Binaries  ( Duchene / UCLA )



- Other important topics


17h35 - 17h55: Solar System Science  ( Dumas / JPL )

17h55 - 18h15: Interest for Spectroscopy  ( Monin / LAOG )



END of DAY 1




DAY 2:  May 23rd, 2003  ( 9h00 -> 16h30 )
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^


III- Relevant Instrumentation
     ------------------------


9h00 - 9h30: Gain for Coronography  ( Soummer/ Nice ) 
               Corono 4-quadrants, CIA, phase mask...

9h30 - 9h50: SPID (optical, Halpha specklegraph) ( Foy / Lyon )

9h50 - 10h10: Dual beam Imaging - TRIDENT ( Doyon / Montreal )	




IV- AO  Hardware-related issues
    ---------------------------   


10h10 - 10h30: CCID-35: CCD for curvature wavefront sensing ( Dorn / ESO )

10h30 - 10h50: Fly-Eyes ( Cuillandre / CFHT )


10h50-11h10 coffe break


11h10 - 11h30: RTC issues  ( Fedrigo-Hubin / ESO )
 
11h30 - 11h50: Deformable Mirrors  ( Jagourel / CILAS )
  									
11h50 - 12h10: Options for the Lenslet array ( Arsenault-Hubin / ESO )



V- Calibration and deconvolution  issues
   -------------------------------------

12h10 - 12h40: Calibrations / deconvolution  ( Fusco / Onera )



12h00 - 14h00: Lunch break



VI- Other AO System projects:
    ------------------------


14h00 - 14h20: NAOS + ESO/Planet Finder  ( Mouillet / OMP Tarbes )

14h20 - 14h40: Hokupa'a 85 / projects at IfA  ( Ftaclas / IfA ) 

14h40 - 15h00: Adaptive Optics for the German Solar Telescope 
                   ( Berkefeld / Freiburg )

OPEN DISCUSSION: 
-----------------


15h00 - ~16h00:
 
Is PUEO NUI timely? How does it fit in the long term plans?  
Who builds it? Where?

including:

10min: possible contribution from HIA (Veran)
10min: possible contribution from LAOG (Kern / Perrier?)
10min: possible contribution from CFHT (Veillet?)

Organising committee as moderators / animators


16h00 - 16h30: concluding remarks

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Participants (as of May 9th)

Bastien, Pierre        U Montreal           bastien@astro.umontreal.ca
Berger, Jean-Philippe  LAOG		    jean-philippe.berger@obs.ujf-grenoble.fr
Berkefeld, Thomas      Uni Freiburg         berkefeld@kis.uni-freiburg.de
Beuzit, Jean-Luc       Grenoble             beuzit@obs.ujf-grenoble.fr
Bohlender, David       HIA                  david.bohlender@nrc-cnrc.gc.ca
Bouvier, Jerome	       LAOG		    jbouvier@obs.ujf-grenoble.fr

Carignan, Claude       Univ. de Montreal    carignan@astro.umontreal.ca
Cuillandre, Jean-Charles CFHT               jcc@cfht.hawaii.edu

Dorn, Reihold	       ESO 		    reinhold.dorn@eso.org
Dougados, Catherine    Grenoble             dougados@obs.ujf-grenoble.fr
Doyon, Rene            U Montreal           doyon@astro.umontreal.ca
Duchene, Gaspard       UCLA                 duchene@astro.ucla.edu
Dumas, Christophe      JPL

Ferrari, Marc          OAMP / Marseilles    marc.ferrari@oamp.fr
Foy, Renaud            Obs. de Lyon         foy@obs.univ-lyon1.fr
Ftaclas, Christ        IfA		    ftaclas@ifa.hawaii.edu
Fusco, Thierry         ONERA

Gay, Jean              Nice                 gay@obs-nice.fr

Hirtzig, Mathieu       LESIA                mathieu.hirtzig@obspm.fr

Jagourel, Pascal       CILAS                jagourel@cilas.fr

Kern, Pierre	       LAOG
Kim, Oh-il             Korea                hikim@kao.re.kr

Lai, Olivier           CFHT 		    lai@cfht.hawaii.edu
Liu, Michael           IfA                  mliu@ifa.hawaii.edu

Maillard, Jean-Pierre  IAP                  maillard@iap.fr
Martin, Eduardo        IfA		    ege@ifa.hawaii.edu
Menard, Francois       Grenoble	            menard@obs.ujf-grenoble.fr
Monin, Jean-Louis      LAOG		    monin@obs.ujf-grenoble.fr
Mouillet, David        OMP-Tarbes
Moutou, Claire         Obs de Marseilles

Perrin, Guy            LESIA / Paris        guy.perrin@obspm.fr  
Perraut, Karine        LAOG		    kperraut@obs.ujf-grenoble.fr
Petitjean, Patrick     IAP		    ppetitje@iap.fr  (22 seulement)
Puget, Pascal          CFHT                 puget@cfht.hawaii.edu

Rayner, John T.        IfA/IRTF		    rayner@ifa.hawaii.edu	
Rivet, Jean-Pierre     Obs Nice		    rivet@obs-nice.fr	 
Rouan, Daniel          Meudon		    rouan@obspm.fr

Saisse, Michel         LAS /Marseille       saisse@oamp.fr
Soltau, Dirk 	       Freiburg       	    soltau@kis.uni-freiburg.de
Soucail, Genevieve     OMP/ Toulouse        soucail@ast.obs-mip.fr
Soummer, Remi          Nice		    remi.soummer@unice.fr 

Veillet, Christian     CFHT 		    veillet@cfht.hawaii.edu

Woillez, Julien	       Meudon		    julien.woillez@obspm.fr

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To get to LAOG in Grenoble

Please see this site , which has an interactive map of the campus . If you need information on how to get to the campus, you will also find maps of Grenoble, of the town center and various addresses on the LAOG web site

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Proposed Hotels in Grenoble

HOTEL list --  Grenoble down town
=================================

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HOTEL DE L'EUROPE  (2 stars **) 
22 pl. Grenette

TEL: 04.76.46.16.94
FAX: 04.76.43.13.65

Located hyper-center within the pedestrian zone
1 minute walk from tramway line to University

45,6 Euros simple occupancy  
60,2 Euros double occupancy (2 regular beds)

Includes private shower, WC, TV

Breakfast available for 5,50Euros/pers extra

================================================
HOTEL TOURING (**)
26 av Alsace Lorraine

TEL: 04.76.46.24.32
FAX: 04.76.46.02.85

Located 3min from the train station
3 min from tramway line to University

42,2 Euros single occupancy   shower-WC-TV
47,8 EUros double occupancy (twin beds)

Breakfast for 5,20 Euros/pers. extra

================================================
HOTEL GLORIA  (**)
12, rue Aristide Berges
Tel: 04.76.46.12.93
FAX: 04.76.87.14.93

100m away from train station
Very close to tramway line to University

40,6 Euros single occupancy  
46,20 Euros double occupancy (1 small beds) 

All with WC and showers

Breakfast available, 5,50/pers. extra

================================================
HOTEL IBIS CENTRE (**)  Full most of the time!!!
5, rue de Miribel
TEL: 04.76.47.48.49
FAX: 04.76.47.78.22

Hyper center
2 minutes away from tramway line to University

Many rooms available, shower + WC + TV

55 Euros, flat rate single or double oocupancy

Breakfast available for 5.50 Euros/pers. extra

================================================
HOTEL DES ALPES (**)
45 ave. Felix Viallet
TEL: 04.76.87.00.71
FAX: 04.76.56.95.45

5 minutes away from train station
3 minutes from tramway line to University
500m outside of the pedestrian zone

43,6 Euros simple occupancy, shower-WC-TV 
51,0 Euros double occupancy (twin beds) shower-WC-TV

Breakfast available for 6,0 Euros/pers. extra

================================================
HOTEL BASTILLE
25 av. Felix Viallet
TEL: 04.76.43.10.27
FAX: 04.76.87.52.69 
 
5 minutes away from train station
3 minutes from tramway line to University
500m outside of the pedestrian zone

Rooms with 1 large bed

43,6 Euros single occupancy  shower, WC, TV  
52,2 Euros for double occupancy, (twin beds)

Breakfast available for 6,0 Euros/pers. extra 

================================================

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