1. 3D Spectroscopy in the Virtual Observatory: Current Status Igor Chilingarian (Observatoire de Paris, France/SAI MSU, Russia) Ivan Zolotukhin (SAI MSU, Russia) Francois Bonnarel, Mireille Louys, Pierre Fernique, Thomas Boch (CDS, France) Pierre Le Sidaner, Frederic Royer, Isabelle Jegouzo (Observatoire de Paris) Spectroscopy and VO – ESAC – Villafranca del Castillo – 22 Mar 2007

2. I. Chilingarian et al. – Spectroscopy and VO – ESAC, Villafranca Del Castillo, 22.Mar.2007 3 Cornerstones for 3D data in VO 1. Data Model 2. Data Access Services 3. Client Applications

3. I. Chilingarian et al. – Spectroscopy and VO – ESAC, Villafranca Del Castillo, 22.Mar.2007 Characterisation DM Level 2CoverageResolutionSampling Spatial (pos)Bounds Temporal (time)Bounds Spectral (em)Bounds Observable (phot)Bounds Level 3CoverageResolutionSampling Spatial (pos)Support Temporal (time)Support Spectral (em)Support Observable (phot)Support Level 4CoverageResolutionSampling Spatial (pos)Map Temporal (time)Map Spectral (em)Map Observable (phot)Map The basic part of the most general data model: Observation DM Provides a physical characterisation of a dataset

4. I. Chilingarian et al. – Spectroscopy and VO – ESAC, Villafranca Del Castillo, 22.Mar.2007 Characterising IFU datasets Only first two levels (Location/Ref.Value and Bounds) should be provided for the whole dataset CharacterizationAxis[ucd=pos]/Coverage/Location CharacterizationAxis[ucd=pos]/Resolution/RefVal CharacterizationAxis[…]/SamplingPrecision/RefVal CharacterizationAxis[ucd=pos]/Coverage/Bounds/CharBox

5. I. Chilingarian et al. – Spectroscopy and VO – ESAC, Villafranca Del Castillo, 22.Mar.2007 3 Cornerstones for 3D data in VO 1. Data Model 2. Data Access Services 3. Client Applications

6. I. Chilingarian et al. – Spectroscopy and VO – ESAC, Villafranca Del Castillo, 22.Mar.2007 Storing 3D Data in FITS Pure 3D data cube (for IFP data and for some IFU) Pure 3D data cube (for IFP data and for some IFU) 2D-image (one spectrum per row) + binary table  2D-image (one spectrum per row) + binary table  Euro3D Format FITS binary data table: one row per spectrum Binary table describing shape of spatial elements (“spaxels”) Some mandatory metadata, including: common spectral WCS for all spectra, common spatial WCS for all spatial elements, meteo parameters during the observations, etc.

7. I. Chilingarian et al. – Spectroscopy and VO – ESAC, Villafranca Del Castillo, 22.Mar.2007 1. Giraffe Archive at ObsPM Delivery of Euro3D FITS format and “stacked spectra” for reduced observations made with FLAMES/Giraffe at ESO VLT in MEDUSA mode (multi-object spectroscopy) (see poster by Royer et al.) Delivery of Euro3D FITS format and “stacked spectra” for reduced observations made with FLAMES/Giraffe at ESO VLT in MEDUSA mode (multi-object spectroscopy) (see poster by Royer et al.) SSAP access to spectra individual objects (extracted fibers) SSAP access to spectra individual objects (extracted fibers) More data (IFU/ARGUS) are coming… More data (IFU/ARGUS) are coming…

8. I. Chilingarian et al. – Spectroscopy and VO – ESAC, Villafranca Del Castillo, 22.Mar.2007 2. ASPID-SR at SAO RAS Direct querying of the Characterisation DM metadata stored in PostgreSQL database with native XML support using SQL+XPath (see poster by Louys et al.) Direct querying of the Characterisation DM metadata stored in PostgreSQL database with native XML support using SQL+XPath (see poster by Louys et al.) SSAP interface on top of it SSAP interface on top of it Delivery of Euro3D FITS + 3D FITS cubes for ~600 datasets including ~100 MPFS IFU datasets, ~70 IFP data cubes, long slit spectra (the rest) Delivery of Euro3D FITS + 3D FITS cubes for ~600 datasets including ~100 MPFS IFU datasets, ~70 IFP data cubes, long slit spectra (the rest) WEB-2.0 interface WEB-2.0 interface Highest possible integration of the archive WEB-site with existing VO client applications Highest possible integration of the archive WEB-site with existing VO client applications

9. I. Chilingarian et al. – Spectroscopy and VO – ESAC, Villafranca Del Castillo, 22.Mar.2007 3 Cornerstones for 3D data in VO 1. Data Model 2. Data Access Services 3. Client Applications

10. I. Chilingarian et al. – Spectroscopy and VO – ESAC, Villafranca Del Castillo, 22.Mar.2007 VO-Paris Euro3D Client Open source tool, Java 5+ Open source tool, Java 5+ Available as applet and Java WebStart Available as applet and Java WebStart I/O of Euro3D FITS files (local or URL) I/O of Euro3D FITS files (local or URL) Extraction of spectra for individual fibers Extraction of spectra for individual fibers Export of extracted spectra in the VOTable Export of extracted spectra in the VOTable serialization of the IVOA Spectral DM 1.0 serialization of the IVOA Spectral DM 1.0 Export of the catalogue of fiber positions as VOTable 1.1 Export of the catalogue of fiber positions as VOTable 1.1 Communication with CDS Aladin and ESA VOSpec using PLASTIC messages for data visualisation Communication with CDS Aladin and ESA VOSpec using PLASTIC messages for data visualisation http://vo.obspm.fr/tools/Euro3D/

11. I. Chilingarian et al. – Spectroscopy and VO – ESAC, Villafranca Del Castillo, 22.Mar.2007 Summary Our implementation is yet rather simple, however it demonstrates how existing VO standards and tools can be integrated to provide access to complex datasets

12. I. Chilingarian et al. – Spectroscopy and VO – ESAC, Villafranca Del Castillo, 22.Mar.2007 How this all works… (ASPID-SR) PLASTIC-aware ASPIDApplet PLASTIC hub Load DSS Image Load Euro3D File Show Fiber Positions Select Fiber(s) Extract & Display Spectrum