New Features and VO Tools

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New Features and VO Tools Mark G. Allen CDS,
Observatoire de Strasbourg
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Aladin for AVO prototype

• Science Driven Improvements
• SWG feedback, 2005 demo requirements
• Multi-view advanced image browsing
• Image re-sampling
• Cutout generation
• Query by list SIMBAD, VizieR
• Plugin for Specview and VOSpec
• MySpace browser

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Multi-view
HST ACS Ultra Deep Field variable size cutouts
generated from loaded images
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Image Cutout Services
Cutouts generated remotely

e.g. SWIRE cutout service
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Advanced image browsing for distributed data

• IDHA data model for describing FOV Data Tree
• Re-sampling to pixel grids
• Matched zoom and pan
• Simple image registration

Pixel re-sampling
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Query by List
Remote Cross-Matching 'bringing the
computation to the data' Multiple Cone
Searching 'stream-lining batch
requests' Supports X-Match for sparse or complex
distributions of sources

• gt105 sources
• e.g. entire IRAS

VizieR SIMBAD
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Improved components

• Filtering in Aladin and VOPlot
• Data Tree, prototype registry access
• Access real pixels
• Simple image registration
• Multiple access mechanisms to services
  - web service, user interfaces

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MySpace Browser
Interact with results generated with AstroGrid
workflows Images, Spectra, Catalogues

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Multiple tools for handling spectra i)
Specview (STScI, Busko)

• Wide format compatibility
• Co-plot for many spectra
• Line lists
• Model Comparison (z correction and
  normalisation)

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ii) VOSpec (ESA, Osuna)

• Dynamic discovery of SSA-compliant archives
• Direct access via AVO tool or via plugin
• Data from multiple archives/user combined in one
  SED
• Black-body fitting
• Complements SpecView (simpler data, more ops)

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Collaborative Framework
By Adopting VO standards

tools/data work together Plugin approach e.g.
VOPlot (VOIndia)
- direct collaboration between VO
teams Immediate compatibility with standardized
services - e.g Simple Image/Spectra
Access - expose your data to the VO and
tools like ours can use it - the VO
is growing like the www

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Prototype AVO Tools Ready
for real science

Solid foundation tools bleeding edge VO
technology - Good approach, excellent
scientist-developer interaction
- Tools all available via euro-vo.org, and stable
components of the prototype migrate
into the public version of Aladin