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Space Telescope- European Coordinating Facility Presentation to the ESO/ESA Annual Review 15.03.04 Bob Fosbury Pt 1 (am); Pt 2 (pm). Advanced Calibration and Analysis Bob Fosbury (Rosa, Hook, Bristow, Fiorentino, Kerber, etc.). Advanced Calibration — 2 examples. Dispersion Model E140H.
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Space Telescope- European Coordinating Facility Presentation to the ESO/ESA Annual Review 15.03.04 Bob Fosbury Pt 1 (am); Pt 2 (pm)
Advanced Calibration and Analysis • Bob Fosbury • (Rosa, Hook, Bristow, Fiorentino, Kerber, etc.)
Advanced Calibration — 2 examples Dispersion Model E140H • good • solution • ~ 0.4 pix • for • 423 lines • while • iterating • on • engineering • guesses • ~ 3 pix • for • 423 lines STIS - Wavelengths from Model Physical Instrument Model describes configuration of optical elements (Ray trace, optimised by Simulated Annealing) Generic Spectrograph Model successfully applied to FOS, STIS (HST) and UVES (VLT) Example: For STIS 2-D Echelle (Rmax~100,000) 115 – 1100 nm, 7 years of ops predictive accuracy 0.4 pix across 2048 * 2048, includes distortion of up to 2 px at edges
STIS-CE: CCD Readout Model Physical model of the CCD readout process (charge trapping and trailing) Improved (Spectro-)photometry: up to 10% Allows correction of the entire 2-D image array, applicable to spectroscopy, not just extracted stellar fluxes Developed for STIS but portable to other detectors
STIS-CE Lamp Project • Measured HST (FOS, STIS) calib lamps FOR THE 1st TIME ! • Spectra of Pt/Cr-Ne lamp at NIST: 110 – 320 nm • List of > 5000 lines, accurate to < 1/1000 nm, intensities • STIS: flight lamp Pt/Cr-Ne • lab data used, Pt-Ne available Echelle, c 2513 Å # of lines: Pt-Ne 258 # of lines: Pt-Ne 258 vs Pt/Cr-Ne 1612
Advanced Calibration - STIS CE Project • “ … I think the POA-CE programme shines light on what an incredible scientific machine HST is … I am confident, that ST-ECF’s programme to provide the ultimate calibration for HST data will be seen by the entire astronomical community – a thankful community – for the obvious jewel it is …” • Malcolm B. Niedner, HST Deputy Senior Project Scientist, NASA/GSFC • cit from “Guest Editorial” , STECF Newsletter 35, p 2 (Jan 2004)
JWST Heritage • ECF staff participation since 1995 • (Rosa, Albrecht, Cristiani, Fosbury, Freudling, Kuntschner) • Membership of NASA Ad Hoc Science Working Group (ASWG -> June 2000) • Membership of ESA Study Science Team (SST) • Contributions to and production of successful NGST proposal to ESA in Jan 2000 • Various NGST/JWST outreach materials • Including the ESA logo
Attendance at ESA-funded industrial consortium meetings for NIRSpec • Seven ECF NIRSpec Instrument Science Reports • Co-authorship with STScI of ‘NIRSpec Operations Concept’ (June 2003) • Current work on NIRSpec Ground Calibration Concept and on Target Acquisition Procedures
Future plans • Format of discussion • Introduction & background • Near-term (-> 2006) • Long-range (-> 2012) • Discussion • Bob Fosbury
Introduction and background • ECF skills base • Research Astronomers (ESO Faculty members) = Instrument Scientists: 8 (+2 = 1 on leave, 1 VO EC funded) • S/W: 8 • Outreach/graphics: 2 • Admin/operator: 2.25 • Familiarity with Hubble and ESO operations and archives
Links and collaborations • ESO: Archive/VO, Faculty, Instrument Science, Large Programmes (eg. GOODS), Outreach • ESA: Outreach, JWST, EC issues, Archives, VO • STScI: Archive, Instrument Science, HST, JWST, TAC support, Outreach, HDF/GOODS/HUDF
Near-term plans • Instrument Science • Continued support of slitless spectroscopy (NICMOS, ACS) with STScI • Application of Advance Calibration methodologies, currently applied to STIS • JWST NIRSpec Calibration with ESA project, STScI, industry • Exploitation of ECF heritage • Support of large science programmes (eg. Drizzle, astrometry) with STScI, ESO, community
Archive/VO • Operation and development of European HST (and ESO) archive in collaboration with ESO • In coordination with VO developments and, in collaboration with STScI and CADC, provide improved scientific data products, eg. the extension of the WFPC2 ‘association concept’ to ACS • Interface between large science programmes (eg. GOODS) and VO to design appropriate high-level data products, eg. for multi-object spectroscopy
Outreach • Continue HST/JWST outreach • Set up ‘Audio/Visual Products Lab’ (with part-external funding) • Closer integration with ESO • Closer integration between outreach and VO methodologies & mechanisms: they have many similar requirements!
ESA/ESO science coordination • Opticon (EC) – ESA contact point • ESA/ESO science working groups • technical secretariat • Coordinated observing time allocation, eg. ESO/XMM-Newton • Large ground/space ‘legacy’ programmes (eg. GOODS)
Proposed Science Coordination Activities • (more detail) • ESA/ESO joint working groups on future project planning, eg. Extra-solar planets: simulation, modelling, technical coordination • Building AVO science cases • Monitor/support relevant science advisory bodies (Alma, Herschel, XMM, JWST) • XMM-ESO • TAC support, membership (done for HST) • Feasibility checks for joint proposals • Spectroscopic instrumentation • Euro3d • Instrument Modeling of ground and space spectrographs based on existing work (Fourier model of NIRSPEC/JWST, FOS/STIS models)
Long-term plans • 2 Broad Objectives • Flow-down specific tasks • -> Projects • Assess scale • Discuss choices
Objective 1 • To capture the experience of operating large facilities on the ground and in space • Use this knowledge to help maximise the scientific return from current and future facilities • Examples: • The successful adaptation of the HST operational model to ESO VLT • The co-evolution of the HST and ESO archive • The use of advanced calibration methodologies for HST and VLT instruments
Objective 2 • To make the public more aware of European achievements in astronomy — especially by ESA and ESO — and thus • Boost the image of science in Europe and attract funding and the best students into the subject • Examples: • HEIC News and Video releases • ESO/ESA Educational Exercises • Development of extensive graphical and distribution infrastructure
Flowdown 1a • Understand the instrument • Calibrate it properly • Feed high quality science-ready data products to users and to the archive • Call this INSTRUMENT SCIENCE (IS)
Implications 1a • Close participation in the instrument design and development process • Early development of instrument modelling and pre-operational calibration • Need a strong astronomical research base to give appropriate experience and generate peer respect
Flowdown 1b • Make the Archive the link between the instruments and the broad spectrum of users • Major effort Common interest Major effort IS Archives VO
Implications 1b • The VO absolutely depends on the Archive containing high quality and well-described data products • The IS process can be described and characterised by a ‘template’ — the ECF cannot, at its current scale, perform this process for more that a very small number of instruments at any one time
Scale of effort • Instrument Science • Small project, eg. ACS grism mode • 3 FTE (astronomer + s/w engineer) for 2 years • Medium project, eg. STIS • 4 FTE for 3 years • Large project , eg. KMOS, MUSE, NIRSpec • 10–14 FTE for 5 years (based on previous JWST Sci Ops study - Fosbury/Macchetto)
Scale of effort • Archive/VO • (see AVO/ Euro-VO slides)
What’s Next for AVO? • We need to move towards EURO-VO: • Start providing simple but powerful tools to facilitate exploitation of multiwavelength data (e.g. image alignment and registration tool) • Work with (not for) the data centres to increase interoperability [inter-archive tools] and promote high-quality, “science-ready” products; AVO needs these to be successful (see last demo)! • Make progress in turning ESO/ST-ECF archive “VO-compliant” • Funding situation not clear
VO connecting all European astronomical data centres and providers The Future Grid+Net
Persistent • Data Standards • User support • IVO link • Distributed • R&D • VO Technologies for new projects and facilities 2005+
EURO-VO Resources - 4 Years • Data Centre Alliance • UK, France, Germany, Italy, Netherlands, Spain, ESO, ESA [initially 15 Centres] • 2 FTE per centre + 100 kEuro/yr upgrades • Facility Centre • 4 support scientists (registries, outreach, project support = ASTROVIRTEL II) • Technology Centre • 11 FTE development staff • TOTAL: 15.5 Million Euro • EC: 8 Million Euro
EURO-VO Startup • EURO-VO component proposals to FP6 in 2003 failed • Next proposal opportunity in mid 2005 • EURO-VO is too important to be left TOTALLY to the EC competitions • EURO-VO partners will sign MOU in July 2004 to start project and bridge the gap between the end of AVO (Nov. 2004) and the beginning of EURO-VO • ESO will contribute 4 new FTEs for 18 months starting in July 2004 for EURO-VO DCA and VO-TECH work program • VO-TECH proposal to FP6 design studies submitted in March 2004 for ~ 5 Million Euro
Flowdown 2 (Outreach) • Forge appropriate links with ESO • Continue core activities • Strengthen distribution networks and links with journalists • Develop greater capacity for visualisation of astronomical results (AV-lab) • Develop Educational Products with ESA and ESO
Scale of effort • Outreach • Outreach scientist/Group head 1 FTE • Graphics designer 1 FTE • Admin/proofing/distribution 0.5 FTE • AV-lab staff (‘External’ funding) • Image specialist 1 FTE • Graphic designer 1 FTE • Education specialist 1 FTE • Journalist/Teacher associates 2 x 0.5 FTE
Discussion • Structure • Do we agree on the 2 main goals? • What process do we employ to select projects? • How are these projects endorsed by management? • How do we get resources for the ESA VO efforts?