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Objectives

Joint Research Activity # 4 Integrating Interferometry into Mainstream Astronomy Status Report Corfu, September 11, 2007. Objectives. Contribute to integrate interferometry into main stream astronomy Preparing the next generation of VLTI interferometric focal plane instruments

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Objectives

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  1. Joint Research Activity # 4Integrating Interferometry into Mainstream AstronomyStatus ReportCorfu, September 11, 2007

  2. Objectives • Contribute to integrate interferometry into main stream astronomy • Preparing 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 & calibrated interferometric observables

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

  5. WP1.1: Concept to feasibility studiesWPL’s: U. Graser (Heidelberg) & D. Mourard (OCA) • Objective: prepare the next generation of VLTI interferometric focal plane instruments • Two phases: • Concept studies: 01-2004/04-2005 • ESO phase A studies 10-2006/06-2007 project selection probably in 2008

  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) • 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) • Apres-Midi (Lopez et al.): Extension of Midi to 4 beams

  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 resolution • VEGA (Mourard et al.): 4 beams combiner based on the visible spectrograph of GI2T interferometer

  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) • Vitruv (JRA4) • Gravity (External)

  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 combiner • VSI (Formely Vitruv, Malbet et al.): 6 to 8 beams near IR combiner based on Vitruv+Bobcat • Gravity (Eisenhauer et al.)

  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/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/dms • Phases A ended last summer (07/2007). Final selection of 2nd generation of VLTI instruments by ESO probably in 2008

  11. WP1.1: Milestones & Deliverables

  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) • 1st meeting of the CFT working group held in Cambridge, September 29-30, 2005

  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 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 consortium

  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) • Evaluation of the effect of residual atmospheric turbulence on fringe tracking: Under progress (Obs. Bordeaux)

  15. WP1.2: Milestones & Deliverables * New deliverables added in 2006

  16. WP2: SoftwareMaking 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 & 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’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 unchanged

  17. Software requirements for Interferometry • Software needed: • Preparation of observation (feasibility study): software provided by ESO and JMMC • Calibrator selection: software provided by ESO and JMMC • Signal processing: software provided by consortia • Modeling calibrated data: developed within JRA4 • Image reconstruction: developed within JRA4

  18. WP2: Off-line Data Reduction Software PI: Gilles Duvert / SPM Gérard Zins (JMMC/LAOG) WP2.3: Model-fitting (Model Interferometric Observables with (a)chromatic Models) PI: Tallon-Bosc (JMMC/CRAL) WP2.2: Common software based library Team: JMMC/LAOG Technical team 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. WP2.1: Management & User support (Duvert & Zins: JMMC/LAOG) • Web site: http://eii-jra4.ujf-grenoble.fr • Communication between groups • Documentation (templates) • Reporting • Software repositories & configuration • Management plan: written • Status: this activity consists now in maintaining the web services including documentation & reporting

  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. • Only one software release on 12-2007

  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. 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 3/2007 • Activity stopped (no more funds) within JRA4

  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-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. WP2.5: Image reconstructionCRAL/ONERA/MPIfR/MPIA/UCAM-CAV • Objective: provide algorithms for image reconstruction from VLTI & LBT data • UCAM/CAV: MEM regularization (VLTI data) • JMMC/CRAL/ONERA: MEM & quadratic reg. (VLTI data) • MPIFR/MPIA: Lucy-Richardson Algorithm (LBT data) • Management plan: written • User Requirement Document: written

  25. WP2.5: Status (1/2) • JMMC/CRAL/ONERA Group • E. Thiebaut is replaced by G. Duvert as responsible for this task • The two prototypes Wisard & Mira have participated to the 2005 & 2006 beauty contest • Both prototypes are being tested with real data • ONERA 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 contest • Robustness of the code has been tested (report in preparation) • Software public release scheduled by the end of 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 studies • The date of software release is not yet fixed

  27. WP2: Milestones & Deliverables (Statement of work) * In red: intermediate releases cancelled

  28. WP2: Milestones & Deliverables (2/2)

  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 time • The last two (PRIMA & LBT) will continue to be developed within the respective consortia

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

  32. Major Achievements • VLTI efforts in close coordination with ESO • Jump-started VLTI 2nd generation instruments • Contribution 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) • Birth of an interferometric European community • Contribution to the Integration and Expansion of European interferometric community including Central Europe • Creation of the Euro-Interferometry Initiative (EII)

  33. OPTICON PC: Gerry Gilmore / PS: John Davies Scientific Council Chair: T. Henning 6th Framework Program Integrated Infrastructure Initiatives (I3) Marie-Curie Program PC: P. Garcia JRA4 PC: Chelli Network 5 PC: A.Quirrenbach Executive Board Euro-Interferometry Initiative (EII)

  34. FP7 proposal (1/3) • Topics • Reaching the full VLTI potential • Preparation of next generation facilities (km baselines) • Means • 1 JRA (Proposed PI: D. Mourard) • 1 Network (Proposed PI: P. Garcia) • Budget ≈ 1600 K€

  35. FP7 proposal (2/3) • Coordination, Communication, Outreach • Astrophysical working groups • long term vision of interferometry • Support to the VLTI scientific exploitation • European mobility • Fizeau exchange program • Reaching the full VLTI potential (in coordination with ESO) • High level software: reduction pipelines, image reconstruction • Cophasing → long exposure modes → higher sensitivity

  36. FP7 proposal (3/3) • Prospective work: Preparation of Next generation interferometers (km baselines) • Science cases • Comparison of arrays: number of apertures & size • Beam combiners & cophasing: large number of apertures • Relative merits of sites • Identification of critical technological issues • Technology program • Short term: beam transport, combination, cophasing • Mid-term: follow-up of the prospective work, new actions

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