adass, london sep 23-26, 2007 voexplorer : visualising data discovery in the virtual observatory...
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![Page 1: ADASS, London Sep 23-26, 2007 VOExplorer : Visualising Data Discovery in the Virtual Observatory Jonathan Tedds University of Leicester/AstroGrid/ EuroVO](https://reader038.vdocuments.net/reader038/viewer/2022110323/56649d6a5503460f94a4917e/html5/thumbnails/1.jpg)
ADASS, London Sep 23-26, 2007
VOExplorerVOExplorer: Visualising Data Discovery in the : Visualising Data Discovery in the Virtual Observatory Virtual Observatory
Jonathan TeddsJonathan Tedds
University of Leicester/University of Leicester/AstroGridAstroGrid//EuroVO DCA science teamEuroVO DCA science team
[email protected]@star.le.ac.uk
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Jonathan TeddsJonathan Tedds
http://www.astrogrid.org – see our demo stand upstairs
VO Explorer: VO Explorer: Noel Winstanley + Andy Lawrence & AstroGrid science teamNoel Winstanley + Andy Lawrence & AstroGrid science team
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Jonathan TeddsJonathan Tedds
VO Explorer: beta release ~Nov 07VO Explorer: beta release ~Nov 07
AstroGrid front end, AstroGrid front end, part of VOdesktoppart of VOdesktop
Resource-centricResource-centric Select a search-spaceSelect a search-space Search for resourcesSearch for resources Filter these resourcesFilter these resources View selected View selected
resourcesresources Use the selectionUse the selection
– Invoke itInvoke it– Save/Bookmark/Tag itSave/Bookmark/Tag it– Export itExport it
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Jonathan TeddsJonathan Tedds
Access existing X-ray cluster cataloguesAccess existing X-ray cluster catalogues
Browse through keyword metadataBrowse through keyword metadata
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Jonathan TeddsJonathan Tedds
Find
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Jonathan TeddsJonathan Tedds
Resources!
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Jonathan TeddsJonathan Tedds
Euro-VO: Euro-VO: – Technical System withTechnical System with– Content + Resources andContent + Resources and– Operations + SupportOperations + Support
Science drivenScience driven– VO Technology CentreVO Technology Centre– VO Facility CentreVO Facility Centre– VO Data Centre AllianceVO Data Centre Alliance
Euro-VO Science advised Euro-VO Science advised via Euro-VO Science via Euro-VO Science Advisory GroupAdvisory Group
content +resources
technicalsystem
operations +support
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Jonathan TeddsJonathan Tedds
If data in a simple DB can If data in a simple DB can publish to VO in ~day!publish to VO in ~day!
As demonstrated at As demonstrated at June07 EuroVO DCA June07 EuroVO DCA workshop at ESACworkshop at ESAC
For catalogues, For catalogues, images,spectra & images,spectra &
transient eventstransient events
content +resources
technicalsystem
operations +support
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Jonathan TeddsJonathan Tedds
Description
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Jonathan TeddsJonathan Tedds
Filter
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Jonathan TeddsJonathan Tedds
Query on position
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Explore by position: AstroScopeExplore by position: AstroScope
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Jonathan TeddsJonathan Tedds
Plastic/SAMP – visualise selected dataPlastic/SAMP – visualise selected data
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Jonathan TeddsJonathan Tedds Enabling VO ScienceEnabling VO Science
HelioScope displays the results of time queries submitted to Simple Time Access Protocol (STAP) web services – E.Auden, S.Dalla + VOevent (e.g. A.Allan)
STAP specification: http://wiki.astrogrid.org/bin/view/Astrogrid/SimpleTimeAccessProtocol
STAP query parameters:• Start / stop datetimes
(mandatory)• Data format (mandatory)• Instrument ID• Time resolution • Data ID of individual data
products• Position RA & Dec (for
astronomical events)• Size of search box around
position RA & Dec• Band – wavelength range
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Jonathan TeddsJonathan Tedds
Access all extended 2XMM X-ray sourcesAccess all extended 2XMM X-ray sources
Make own X-ray cluster candidate catalogueMake own X-ray cluster candidate catalogue Filter large multiwavelength archives Filter large multiwavelength archives
remotely:remotely:– Create manageable science subsetsCreate manageable science subsets
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Jonathan TeddsJonathan Tedds Enabling VO ScienceEnabling VO Science
247K detections 247K detections 192K unique 192K unique sourcessources
– 520 sq.deg. / 330 sq.degs 520 sq.deg. / 330 sq.degs excluding overlapexcluding overlap
– Full catalogue product set Full catalogue product set availableavailable
– World’s largest ever X-ray World’s largest ever X-ray catalogue – catalogue – see poster bysee poster by C.Page et al.C.Page et al.
Just Out (Aug07)Just Out (Aug07): THE 2XMM CATALOGUE: THE 2XMM CATALOGUE
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Jonathan TeddsJonathan Tedds
Find
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Jonathan TeddsJonathan Tedds
Columns
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Jonathan TeddsJonathan Tedds
Filter columns
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Jonathan TeddsJonathan Tedds
Use
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Jonathan TeddsJonathan Tedds
Query
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Jonathan TeddsJonathan Tedds
Help!
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Jonathan TeddsJonathan Tedds
Save as format
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Jonathan TeddsJonathan Tedds
Save results
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Jonathan TeddsJonathan Tedds Enabling VO ScienceEnabling VO Science
Correlation with SDSSCorrelation with SDSS
Select SDSS galaxies within 1 arcmin of 411 X-ray Select SDSS galaxies within 1 arcmin of 411 X-ray positionspositions– photometry (ugriz), photometric redshiftsphotometry (ugriz), photometric redshifts– spectra, spectroscopic redshiftsspectra, spectroscopic redshifts– colour thumbnail imagescolour thumbnail images
Visual inspection of images, spectroscopic and Visual inspection of images, spectroscopic and photoscopic redshiftsphotoscopic redshifts
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Workflows Workflows – see E.Gonzalez-Solares talk– see E.Gonzalez-Solares talk
•Python, Perl, IDL scripts•Single archive image search•Cone search for multiple, user defined archives•Sextractor script – generate catalogue from images•Montage - mosaic tool
•Taverna•Graphical interface•Embed existing code (any language)
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Workflows Workflows – see E.Gonzalez-Solares talk– see E.Gonzalez-Solares talk
•Python, Perl, IDL scripts•Single archive image search•Cone search for multiple, user defined archives•Sextractor script – generate catalogue from images•Montage - mosaic tool
•Taverna•Graphical interface•Embed existing code (any language)
![Page 28: ADASS, London Sep 23-26, 2007 VOExplorer : Visualising Data Discovery in the Virtual Observatory Jonathan Tedds University of Leicester/AstroGrid/ EuroVO](https://reader038.vdocuments.net/reader038/viewer/2022110323/56649d6a5503460f94a4917e/html5/thumbnails/28.jpg)
Workflows Workflows – see E.Gonzalez-Solares talk– see E.Gonzalez-Solares talk•Python, Perl, IDL scripts
•Single archive image search•Cone search for multiple, user defined archives•Sextractor script – generate catalogue from images•Montage - mosaic tool
•Taverna•Graphical interface•Embed existing code (any language)
![Page 29: ADASS, London Sep 23-26, 2007 VOExplorer : Visualising Data Discovery in the Virtual Observatory Jonathan Tedds University of Leicester/AstroGrid/ EuroVO](https://reader038.vdocuments.net/reader038/viewer/2022110323/56649d6a5503460f94a4917e/html5/thumbnails/29.jpg)
Jonathan TeddsJonathan Tedds Enabling VO ScienceEnabling VO Science
Correlation with SDSSCorrelation with SDSS
Spectroscopic z = 0.223 (Lamer+, in prep)Spectroscopic z = 0.223 (Lamer+, in prep)
![Page 30: ADASS, London Sep 23-26, 2007 VOExplorer : Visualising Data Discovery in the Virtual Observatory Jonathan Tedds University of Leicester/AstroGrid/ EuroVO](https://reader038.vdocuments.net/reader038/viewer/2022110323/56649d6a5503460f94a4917e/html5/thumbnails/30.jpg)
Jonathan TeddsJonathan Tedds
AstroGrid front end, AstroGrid front end, part of VOdesktoppart of VOdesktop
Resource-centricResource-centric Select a search-spaceSelect a search-space Search for resourcesSearch for resources Filter these resourcesFilter these resources View selected View selected
resourcesresources Use the selectionUse the selection
– Invoke itInvoke it– Save/Bookmark/Tag itSave/Bookmark/Tag it– Export itExport it
http://www.astrogrid.org – see our demo stand upstairs
![Page 31: ADASS, London Sep 23-26, 2007 VOExplorer : Visualising Data Discovery in the Virtual Observatory Jonathan Tedds University of Leicester/AstroGrid/ EuroVO](https://reader038.vdocuments.net/reader038/viewer/2022110323/56649d6a5503460f94a4917e/html5/thumbnails/31.jpg)
Jonathan TeddsJonathan Tedds
Better stop…!Better stop…!