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Published byCarmella Dawson Modified over 9 years ago
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Prologue Major VO objective: “Data at your fingertips” (Lawrence) VO-user’s desire: “going backstage” –Data quality assessment by user (talk Gilmore) “how did the data-provider arrive at its final result exactly?” –Diamond-in-haystack searches Upper-limits, swamping by false positives, homogenizing psf- dependent photometry (talk Kuijken) –Statistics of large datasets Interaction with raw/intermediate data (e.g., weak lensing: Kuijken) –Comparing different routes of analysis (talk Wolk)
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The Astro-Wise system A Federated Information Accumulator for Astronomy Gijs Verdoes Kleijn OmegaCEN, Kapteyn Groningen, NL for the Sternwarte(+MPE) Munich Terapix Paris OAC Naples Astro-Wise Consortium Kapteyn Institute Groningen Coordinator (National WideField data centers D,F,I,NL and ESO)
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The Astro-Wise system A Federated Information Accumulator for Astronomy Gijs Verdoes Kleijn OmegaCEN, Kapteyn Groningen, NL for the Astro-Wise Consortium Has built the Astro-Wise system: –combining {archiving+processing+scientific analysis} of optical wide-field imaging –EU FP5 RTD 5 year programme (parallel to AVO) –Funding dec 2006, other funding until 2009 And has started using it for science
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Motivation Astro-Wise project Wide Field Imaging now and future : NOAO-MOSAICI, CTIO-MOSAICII, ESO-WFI/VIMOS, Magellan-IMACS, LaPalma-WFC, CFHT-MegaCAM, Subaru-SuprimeCAM,…, VISTA, OmegaCAM, Pan-Starrs, LSST,… Optimize scientific return from Wide Field Imaging: Facilitate (un)forseen uses of calibrated and raw Tera/Petabyte data sets by global pools of collaborators and resources This requires enabling changes at any time in: 1.Physical parameters (e.g., instrument/atmosphere) 2.Improved algorithms 3.Improved insight in 1. or 2. And requires a single integrated information system Quality control User tuned research Archiving (raw+final) Dissemminating results Calibration Integrated Information system
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The Astro-Wise approach: Objects with –Attributes –Methods
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The Astro-Wise approach: Objects with –Attributes –Methods Link all dependencies of objects
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The Astro-Wise Environment CPUs DATABASE LINKS METADATA images CATALOGS Contains “ALL input/output” DATA SERVER: Images: Calibration & science Raw & final Methods/Algorithms In on-line repository Python (wrapped)
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Benefits from integrated dynamic database relevant for VO Both final and raw products accessible Objects are linked, all bits are traced: –on-the fly re-processing –Built–in workflow Easy publishing for VO (to be implemented) –Public data already viewable via web tools Own compute GRID operational A federated integrated-system: –Naturally serves global collaborative projects –Scalable: image server/database/compute GRID resources can grow via federation Mydb environment operational for individual research Quick scripting: many tasks are “5 Line Scripts” Fully user tunable – own provided algorithms/scripts allowed Python: existing software can be wrapped (implemented for Sextractor, swarp, being implemented for GALPHOT, GALFIT)
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A flavor of available tools Data processing: web & command-line
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A flavor of available tools
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Cut-out server
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Status Astro-Wise system operational in : Groningen, Leiden, Nijmegen, Munich, Bonn, Bochum, Paris, Napoli, Santiago Astro-Wise will serve: –OmegaCAM surveys KIDS (Kuijken) VESUVIO (Galaxy cluster imaging) OmegaTrans (planet transits) OmegaWhite (close binary stars) And plans to support –MegaCAM@CFHT, –Coma legacy Survey ACS –LOFAR
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Prologue revisited Major VO objective: “Data at your fingertips” (Lawrence) VO-user’s desire: “going backstage” –Data quality assessment by user “how did the data-provider arrive at its final result exactly?” –Diamond-in-haystack searches Upper-limits, swamping by false positives, homogenizing psf- dependent photometry (Gilmore, Kuijken) –Statistics of large datasets Interaction with raw/intermediate data (e.g., weak lensing: Kuijken) –Comparing different routes of analysis (Wolk)
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Summary Astro-Wise: a federated information accumulator for astronomy “Raw and final data at your fingertips” –traces every bit of final data back to raw data bits Raw data are sacred –processed data are derivatives continuously adding information to the system The system is scalable: can be done via federation Find me at IVOA stand to see Astro-Wise working or Contact me for personal demo or Visit www.astro-wise.orgwww.astro-wise.org or Next astro-wise workshop 20-23 November 2006
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