1. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 1 Joint Research Activity # 4 Integrating Interferometry into Mainstream Astronomy Status Report Corfu, September 11, 2007

2. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 2 Objectives  Contribute to integrate interferometry into main stream astronomy Preparing the next generation of VLTI interferometric focal plane instrumentsPreparing the next generation of VLTI interferometric focal plane instruments Providing the end-user of interferometric facilities such as ESO’s VLTI with a software to help visualize and interpret reduced & calibratedProviding the end-user of interferometric facilities such as ESO’s VLTI with a software to help visualize and interpret reduced & calibrated interferometric observables

3. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 3 Participants  Participants: 14 country (> 20 laboratories)  Universität Wien (Austria)  Université de Liège (Belgium)  Academy of Sciences (Czech Republic)  Jean-Marie Mariotti Center for Interferometry, JMMC (France)  Max-Planck-Institut für Astronomie (Germany)  Konkoly Observatory (Hungary)  Technion (Israel)  Torino University (Italy)  Nederlandse Onderzoekschool Voor Astronomie, NOVA (The Netherlands)  Torun University (Poland)  Porto University (Portugal)  Universidad Autonoma Madrid (Spain)  Observatoire de Genève (Switzerland)  University of Cambridge (United Kingdom)  European Space Agency  European Southern Observatory

4. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 4 Joint Research Activity # 4 “Integrating interferometry into mainstream astronomy” PC: Alain Chelli (http://eii-jra4.ujf-grenoble.fr) WP1 Advanced Instruments (2 nd Generation VLTI Instruments) WP1.1: Concepts to Feasibility WPLs: Uwe Graser (Heidelberg) & Denis Mourard (OCA) WP1.2: Cophasing & fringe tracking WPL: Mario Gai (Torino) Objective: facilitate the use of modern interferometric facilities such as ESO’s VLTI to a non specialist end user WP2: Off-line data reduction Software WPL: Gilles Duvert (JMMC/LAOG) SPM: Gerard Zins (JMMC/LAOG) 500K€

5. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 5 WP1.1: Concept to feasibility studies WPL’s: U. Graser (Heidelberg) & D. Mourard (OCA)  Objective: prepare the next generation of VLTI interferometric focal plane instruments  Two phases: Concept studies: 01-2004/04-2005Concept studies: 01-2004/04-2005 ESO phase A studies 10-2006/06-2007ESO phase A studies 10-2006/06-2007 project selection probably in 2008 project selection probably in 2008

6. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 6 WP1.1: Instruments proposals developed within JRA4 (1/2)  Four Infrared multi-beams combiners Vitruv (Malbet et al.): 6 to 8 beam combiners with integrated optics (Near IR)Vitruv (Malbet et al.): 6 to 8 beam combiners with integrated optics (Near IR) Bobcat (Buscher et al.): 3 to 6 beams combiner (Near IR)Bobcat (Buscher et al.): 3 to 6 beams combiner (Near IR) Vida (Lardiere et al.): 4 to 8 beams combiners with densified pupil (Near IR)Vida (Lardiere et al.): 4 to 8 beams combiners with densified pupil (Near IR) Apres-Midi (Lopez et al.): Extension of Midi to 4 beamsApres-Midi (Lopez et al.): Extension of Midi to 4 beams

7. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 7 WP1.1: Instruments proposals developed within JRA4 (2/2)  Two visible instruments UVES-I (Quirrenbach et al.): fiber link from VLTI to UVES spectrograph. Combination of high spatial and high spectral resolutionUVES-I (Quirrenbach et al.): fiber link from VLTI to UVES spectrograph. Combination of high spatial and high spectral resolution VEGA (Mourard et al.): 4 beams combiner based on the visible spectrograph of GI2T interferometerVEGA (Mourard et al.): 4 beams combiner based on the visible spectrograph of GI2T interferometer

8. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 8 ESO/EII common workshop  Instrument concepts presented at the ESO/EII common workshop (6-8 April 2005)  Recommendation from the EII-SC to support 3 concepts for phase A studies: Apres-Midi (JRA4)Apres-Midi (JRA4) Vitruv (JRA4)Vitruv (JRA4) Gravity (External)Gravity (External)

9. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 9 Selection of project by ESO  The 3 projects supported by the EII-SC have been selected by ESO for phase A (10-2006)  JRA4 responsible recommended to the participants of WP1.1 to focus their efforts towards the selected projects, merging concepts whenever possible MATISSE (Formerly Apres-Midi, Lopez et al.): dedicated 10μm 4 beams combinerMATISSE (Formerly Apres-Midi, Lopez et al.): dedicated 10μm 4 beams combiner VSI (Formely Vitruv, Malbet et al.): 6 to 8 beams near IR combiner based on Vitruv+BobcatVSI (Formely Vitruv, Malbet et al.): 6 to 8 beams near IR combiner based on Vitruv+Bobcat Gravity (Eisenhauer et al.)Gravity (Eisenhauer et al.)

10. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 10 Kick-off meetings (phase A)  Matisse: kick-off meeting for phase A held in Nice on November 16 2006 (30 participants) See http://www.obs-nice.fr/matisseSee http://www.obs-nice.fr/matissehttp://www.obs-nice.fr/matisse  VSI: kick-off meeting for phase A held in Grenoble on September 2006 (30 participants) See http://www-laog.obs.ujf-grenoble.fr/heberges/vsi/dmsSee http://www-laog.obs.ujf-grenoble.fr/heberges/vsi/dmshttp://www-laog.obs.ujf-grenoble.fr/heberges/vsi/dms  Phases A ended last summer (07/2007). Final selection of 2 nd generation of VLTI instruments by ESO probably in 2008

11. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 11 WP1.1: Milestones & Deliverables Milestones & Deliverables Planned(Month)Achieved(month) D1: Contributors to concept studies 33 M1: ESO/EII common workshop 1616 D2: Instruments concept reports 1616 D3: Contributors to phase A studies 1624 D4: ESO project selection for phase A studies 3034 D5 : ESO selection of 2 nd generation of VLTI instruments >48

12. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 12 WP1.2: Cophasing & Fringe tracking (WPL: M. Gai, OATo/Torino)  Objectives Study problems related to Cophasing & Fringe tracking, and favour collaborations between groups  WP1.2 is supported by a working group and is taking advantage of the Fizeau exchange visitor program (N5) 1 st meeting of the CFT working group held in Cambridge, September 29-30, 20051 st meeting of the CFT working group held in Cambridge, September 29-30, 2005

13. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 13 WP1.2: activities (1/2)  The activities within WP1.2 are focused on the following topics: Multiple beams combination schemes (Col. OATo/Technion): experiments for testing various recombination schemes based on bulk opticsMultiple beams combination schemes (Col. OATo/Technion): experiments for testing various recombination schemes based on bulk optics Fringe tracking for second generation VLTI instruments: Col. OATo/UCAM CAV on fringe tracking for the VLTI spectro imager VSI (2 concepts proposed). Contacts are kept with MATISSE consortiumFringe tracking for second generation VLTI instruments: Col. OATo/UCAM CAV on fringe tracking for the VLTI spectro imager VSI (2 concepts proposed). Contacts are kept with MATISSE consortium

14. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 14 WP1.2: activities (2/2) Current fringe tracking facilities at the VLTI: ESO task force was able to close the loop with Finito on both AT’s and UT’s (2006). The two PRIMA FSU units (A and B) have been installed at ESO (Garching, 2006). System integration and test for Preliminary Acceptance in Europe are in progress (PRIMA consortium)Current fringe tracking facilities at the VLTI: ESO task force was able to close the loop with Finito on both AT’s and UT’s (2006). The two PRIMA FSU units (A and B) have been installed at ESO (Garching, 2006). System integration and test for Preliminary Acceptance in Europe are in progress (PRIMA consortium) Evaluation of the effect of residual atmospheric turbulence on fringe tracking: Under progress (Obs. Bordeaux)Evaluation of the effect of residual atmospheric turbulence on fringe tracking: Under progress (Obs. Bordeaux)

15. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 15 WP1.2: Milestones & Deliverables Milestones & Deliverables Planned(Month)Achieved(month) D1: Contributors to concept studies 33 D2: 1 st Progress Report on CFT* 2424 D3: 2 nd Progress Report on CFT* 3636 D4: 3 rd Progress Report on CFT* 48 * New deliverables added in 2006

16. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 16 WP2: Software Making the VLTI an end-to-end service instrument  Objective: Provide the end-user of interferometric facilities such as ESO’s VLTI with a software to help visualize and interpret reduced & calibratedProvide the end-user of interferometric facilities such as ESO’s VLTI with a software to help visualize and interpret reduced & calibrated interferometric observables   Present status: Due to phasing problems and because some groups had yet their own technical solutions, none of the groups have used the technical solutions proposed by the WPL’sDue to phasing problems and because some groups had yet their own technical solutions, none of the groups have used the technical solutions proposed by the WPL’s Also, the bar has been put very high in terms of management and quality. Intermediate software releases have been canceled but the final software will be unchangedAlso, the bar has been put very high in terms of management and quality. Intermediate software releases have been canceled but the final software will be unchanged

17. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 17 Software requirements for Interferometry  Software needed: Preparation of observation (feasibility study): software provided by ESO and JMMCPreparation of observation (feasibility study): software provided by ESO and JMMC Calibrator selection: software provided by ESO and JMMCCalibrator selection: software provided by ESO and JMMC Signal processing: software provided by consortiaSignal processing: software provided by consortia Modeling calibrated data: developed within JRA4Modeling calibrated data: developed within JRA4 Image reconstruction: developed within JRA4Image reconstruction: developed within JRA4

18. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 18 WP2: Off-line Data Reduction Software PI: Gilles Duvert / SPM Gérard Zins (JMMC/LAOG) WP2.2: Common software based library Team: JMMC/LAOG Technical team WP2.3: Model-fitting (Model Interferometric Observables with (a)chromatic Models) PI: Tallon-Bosc (JMMC/CRAL) WP2.4: Astrometry (Orbit fitting, Parallax, Proper motion) PI: Quirrenbach (NEVEC/Leiden), Queloz (Unige) WP2.1: Management & User Support Team: JMMC/LAOG WP2.5: Image Reconstruction Teams: Cambridge – JMMC/CRAL/ONERA – FRINGE/MPIA/MPfR

19. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 19 WP2.1: Management & User support (Duvert & Zins: JMMC/LAOG)  Web site: http://eii-jra4.ujf-grenoble.fr http://eii-jra4.ujf-grenoble.fr Communication between groupsCommunication between groups Documentation (templates)Documentation (templates) ReportingReporting Software repositories & configurationSoftware repositories & configuration  Management plan: written  Status: this activity consists now in maintaining the web services including documentation & reporting

20. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 20 WP2.2: Common software (Duvert & Zins: JMMC/LAOG)  Management plan: written  User requirement document: written  Programming rules: written  Common libraries: most have been written  Code: documented in situ & through web interface  Status: This activity has slowed down in 2006 due to the growing discrepancy between the state of this WP and the state of the client WP’s 2.3, 2.4, 2.5.This activity has slowed down in 2006 due to the growing discrepancy between the state of this WP and the state of the client WP’s 2.3, 2.4, 2.5. Only one software release on 12-2007Only one software release on 12-2007

21. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 21 WP2.3: Model Fitting (Tallon-Bosc: CRAL → Gilles Duvert: LAOG) )  Objectives: fit inteferometric observables with geometrical models  Management plan: written  User requirement document: written  I. Tallon-Bosc replaced by G. Duvert as coordinator in 2006  Status: A prototype version of this software based on a Yorick code has been presented at the school of Gouttelas in 2006. The release of the software package and user manual is scheduled for mid 2008

22. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 22 WP2.4: Astrometry (PRIMA) (Queloz/Geneva, Quirrenbach/Leiden)  Objectives: Calculation of stellar relative parallactic motion & orbital parameters of binary systems (Geneva) + development of the Interactive Data Analysis Facility (Leiden) for PRIMA data  Status: work started in 2005  Management plan: written  Geneva group User requirement document released on 3/2007User requirement document released on 3/2007 Activity stopped (no more funds) within JRA4Activity stopped (no more funds) within JRA4

23. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 23 WP2.4: Status  Leiden group Responsible people moved to Heidelberg in 2006. Heidelberg University is not a contractor of this project → WP2 coordinator stops coordinating this sub-projectResponsible people moved to Heidelberg in 2006. Heidelberg University is not a contractor of this project → WP2 coordinator stops coordinating this sub-project  We suggest to remove the final deliverable D4 (Software package & user manual) from this task. Note that this software will continue to be developed within the PRIMA consortium.

24. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 24 WP2.5: Image reconstruction CRAL/ONERA/MPIfR/MPIA/UCAM-CAV  Objective: provide algorithms for image reconstruction from VLTI & LBT data UCAM/CAV: MEM regularization (VLTI data)UCAM/CAV: MEM regularization (VLTI data) JMMC/CRAL/ONERA: MEM & quadratic reg. (VLTI data)JMMC/CRAL/ONERA: MEM & quadratic reg. (VLTI data) MPIFR/MPIA: Lucy-Richardson Algorithm (LBT data)MPIFR/MPIA: Lucy-Richardson Algorithm (LBT data)  Management plan: written  User Requirement Document: written

25. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 25 WP2.5: Status (1/2)  JMMC/CRAL/ONERA Group E. Thiebaut is replaced by G. Duvert as responsible for this taskE. Thiebaut is replaced by G. Duvert as responsible for this task The two prototypes Wisard & Mira have participated to the 2005 & 2006 beauty contestThe two prototypes Wisard & Mira have participated to the 2005 & 2006 beauty contest Both prototypes are being tested with real dataBoth prototypes are being tested with real data ONERA is currently documenting the Wisard code for public release by the end of 2007ONERA is currently documenting the Wisard code for public release by the end of 2007  Cambridge group The prototype BSMEM won the 2005 & 2006 image beauty contestThe prototype BSMEM won the 2005 & 2006 image beauty contest Robustness of the code has been tested (report in preparation)Robustness of the code has been tested (report in preparation) Software public release scheduled by the end of 2007Software public release scheduled by the end of 2007

26. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 26 WP2.5: Status (2/2)  MPIfR/MPIA Group MPIfR carried out computer and laboratory simulations of image reconstruction from LBT data, with a special care to the problem of space varying point spread function; and also computer simulations in the context of science case studiesMPIfR carried out computer and laboratory simulations of image reconstruction from LBT data, with a special care to the problem of space varying point spread function; and also computer simulations in the context of science case studies The date of software release is not yet fixedThe date of software release is not yet fixed

27. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 27 WP2: Milestones & Deliverables (Statement of work) Month6121824303642485460 WP2.1D1 WP2.2M1D1M2D2M3D3M4D4 WP2.3M1D1M2D2M3D3M4D4 WP2.4M1D1M2D2M3D3M4D4 WP2.5M1D1M2D2M3D3M4D4 * In red: intermediate releases cancelled

28. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 28 WP2: Milestones & Deliverables (2/2) Milestones & Deliverables Planned(Month)Achieved(month) D1/WP2.1 D1: List of contributors 312 M1+D1/WP2.2/WP2.3M1+D1/WP2.5 M1+D1: Design review+User requirements 18181824 M4+D4/WP2.2M4+D4/WP2.3M4+D4/WP2.5 M4+D4: Software release + user manual 54 → 48 54 60 → 48

29. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 29 WP2: Conclusions  Since the beginning of the WP2, definite progress has been made in half a dozen of research groups throughout EU. The WP2 will reach the goal of providing the VLTI user community with the necessary tools for interferometric data interpretation.  Over the 5 software developed within JRA4: The three most urgent ones (model fitting & 2 image reconstruction for VLTI) will be released on timeThe three most urgent ones (model fitting & 2 image reconstruction for VLTI) will be released on time The last two (PRIMA & LBT) will continue to be developed within the respective consortiaThe last two (PRIMA & LBT) will continue to be developed within the respective consortia

30. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 30 Participant Total budget allocated (euros) Amount spent (31/12/06) Money yet sent to this contactor Budget requested (next 18 m.) Expected cost by end of project Difference between cols 2 & 6 INSU/CNRS2550002705852705850270585-15585 UCAM/CAV1000009370585304570099405+595 INAF/OATo650001160739099118000134073-69073 MPIA+MPIfR16000012155114955135000156551+3449 NOVA150000114453992760114453+35547 Ulg3500002800035000350000 KO250001105913799750018559+6441 ONERA650005997944332059979+5021 CAUP40000233893438116610400000 Technion250002294129540022948+2052 NCU/UMK4000018541226831920037741+2259 UNIGE400003439338219034393+5607 OO2500014101200001410+23590 UNIVIE3500022115211351052032636+2364 TOTAL10600009102029397971475321057734+2266 Budget: by the end of the project the balance of JRA4 finances will be positive with an excess of about 2K€ Manpower: the manpower dedicated to JRA4 for the first 3 years is about 600 man.month (2/3 from own laboratory resources and 1/3 from Europe)

31. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 31 Major Meetings  5 major meetings (3 JRA4 + 2 NA5) JRA4 Kick-off (Nice 01/2004, 40 participants)JRA4 Kick-off (Nice 01/2004, 40 participants) Joint EII/ESO workshop (Garching, 04/2005, 150 part.)Joint EII/ESO workshop (Garching, 04/2005, 150 part.) Joint ARENA/JRA4 workshop (Nice, 05/2006, 30 part.)Joint ARENA/JRA4 workshop (Nice, 05/2006, 30 part.) Science cases (JENAM 08/2004, N5, ≈ 25 participants )Science cases (JENAM 08/2004, N5, ≈ 25 participants ) Technology roadmap (JENAM, 08/2005, N5, ≈ 25 part.)Technology roadmap (JENAM, 08/2005, N5, ≈ 25 part.)  Marie-Curie program: 2006-2008 4 interferometry schools (≈ 55 participants)4 interferometry schools (≈ 55 participants)  EII Scientific Council 13 meetings since its creation in 2002 (≈ 20 participants)13 meetings since its creation in 2002 (≈ 20 participants)

32. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 32 Major Achievements  VLTI efforts in close coordination with ESO Jump-started VLTI 2 nd generation instrumentsJump-started VLTI 2 nd generation instruments Contribution to the optimization of VLTI performancesContribution to the optimization of VLTI performances −Fringe tracking & Cophasing −Model fitting software (Goutelas summer school, 2006) −Image reconstruction software (Beauty contest)  Emergence of a long term prospective Initiated science case and technology roadmap for next- generation facility (N5)Initiated science case and technology roadmap for next- generation facility (N5)  Birth of an interferometric European community Contribution to the Integration and Expansion of European interferometric community including Central EuropeContribution to the Integration and Expansion of European interferometric community including Central Europe Creation of the Euro-Interferometry Initiative (EII)Creation of the Euro-Interferometry Initiative (EII)

33. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 33 6 th Framework Program Integrated Infrastructure Initiatives (I3) OPTICON PC: Gerry Gilmore / PS: John Davies Marie-Curie Program PC: P. Garcia JRA4 PC: Chelli Network 5 PC: A.Quirrenbach Euro-Interferometry Initiative (EII) Executive Board Scientific Council Chair: T. Henning

34. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 34 FP7 proposal (1/3)  Topics Reaching the full VLTI potentialReaching the full VLTI potential Preparation of next generation facilities (km baselines)Preparation of next generation facilities (km baselines)  Means 1 JRA (Proposed PI: D. Mourard)1 JRA (Proposed PI: D. Mourard) 1 Network (Proposed PI: P. Garcia)1 Network (Proposed PI: P. Garcia)  Budget ≈ 1600 K€

35. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 35 FP7 proposal (2/3)  Coordination, Communication, Outreach  Astrophysical working groups long term vision of interferometrylong term vision of interferometry Support to the VLTI scientific exploitationSupport to the VLTI scientific exploitation  European mobility Fizeau exchange programFizeau exchange program  Reaching the full VLTI potential (in coordination with ESO) High level software: reduction pipelines, image reconstructionHigh level software: reduction pipelines, image reconstruction Cophasing → long exposure modes → higher sensitivityCophasing → long exposure modes → higher sensitivity

36. Alain Chelli – JRA4 Status Report – Opticon meeting – Corfu, September 11 th, 2007 36 FP7 proposal (3/3)  Prospective work: Preparation of Next generation interferometers (km baselines) Science casesScience cases Comparison of arrays: number of apertures & sizeComparison of arrays: number of apertures & size Beam combiners & cophasing: large number of aperturesBeam combiners & cophasing: large number of apertures Relative merits of sitesRelative merits of sites Identification of critical technological issuesIdentification of critical technological issues  Technology program Short term: beam transport, combination, cophasingShort term: beam transport, combination, cophasing Mid-term: follow-up of the prospective work, new actionsMid-term: follow-up of the prospective work, new actions