AstroGrid: Science AstroGrid: Science Use ReadyUse Ready

Nicholas WaltonAstroGrid Project Scientist

IoA, Cambridge

A PPARC funded project

N A Walton : AG Consortium Meeting #7 : NeSC : Edinburgh : Dec 14, 2004 p2 Printed: 14/12/04

AstroGrid (VO) Key GoalsAstroGrid (VO) Key Goals

Enable Science by:● Improving the quality, ease, speed and cost effectiveness

of on-line astronomy● Making comparison and integration of data from diverse

sources seamless and transparent● Removing data analysis barriers to multiwavelength

analysis● Enabling access and manipulation of large data sets

N A Walton : AG Consortium Meeting #7 : NeSC : Edinburgh : Dec 14, 2004 p3 Printed: 14/12/04

X-ray cluster: Chandra X-ray (Mullis) overlaid on a deep BRI image (Clowe & Luppino).

ES

O

Multiple large image sources:registration &association

Source ID from multiplexed spectral data

Multi-TB λCDMmodels, e.g.Millennium Sim

Generate Shear Mapsc.f. CDM models> DM distributionwith redshift Remove stars

correlate galswith z

Colour-Colourrelationshipsclassification in multi-phase space

Automatic clusterfinding techniques

NA

SA

Recap: New & Improved Science:Recap: New & Improved Science:CosmologyCosmology

N A Walton: PPARC Solar Physics Summer School : MSSL : Sep 15, 2004 p4 Printed: 14/12/04

Image from

E

SO

Image + IRIS data

Gamma Ray BurstsGamma Ray Bursts

D. Ducros, ESAReprocessing of ionospheric STP datachange coords from earth to celestial

Collate data frommultiple telescopesover months - meta data issues

Localise GRB alertin minutes – as faderapidly.

SWIFT satelliteobserves gammaray burst

Compare against SNlight curves – bump shows evidence for a SN in the GRB(Price et al, 2002)

Interaction with observatory pipe-lines

Cross reference multi-λdata – ID pre-cursorand or environment

Large computationalphotometric redshift calcs on multi-λ > gives distance

N A Walton: PPARC Solar Physics Summer School : MSSL : Sep 15, 2004 p5 Printed: 14/12/04SOHO/EIT – EUVYohkoh – Xray

NASA: Living With a Star – http://lws.gsfc.nasa.gov

What happens to the Earth's magnetosphere during a coronal mass ejection ?

Event imaged by space based solar observatory

Effect detected later bysatellites and ground radar

New & Improved Science from VO's:New & Improved Science from VO's:Space WeatherSpace Weather

N A Walton : AG Consortium Meeting #7 : NeSC : Edinburgh : Dec 14, 2004 p6 Printed: 14/12/04

Scoping the VOsScoping the VOs● All major projects – science input

— AstroGrid: Science Advisory Group— AVO: Science Working Group— NVO: Science Advisory committee

● Projects define key science goals— Annual demos

● Show early features and use matched to a specific science topic● Encourage early use

— Capability increases year on year — Build towards full working systems

● AstroGrid: deployment of successive 'iteration' releases

N A Walton : AG Consortium Meeting #7 : NeSC : Edinburgh : Dec 14, 2004 p7 Printed: 14/12/04

Progress against 'The AstroGrid 10'Progress against 'The AstroGrid 10'

Functionality: end 2004Functionality: end 2005

N A Walton : AG Consortium Meeting #7 : NeSC : Edinburgh : Dec 14, 2004 p8 Printed: 14/12/04

AstroGrid Science Advisory GroupAstroGrid Science Advisory Group● Members represent a wide range of scientific interests

– Chair: Andrew Jaffe – Imperial College London● Set priorities for feature/capability development

– Main priorities such as emphasis on ease of data access– Specific capabilities such as solar movie maker– Focus on key data sets

● Propose specific example usage science programmes– e.g. Star formation in the solar neighbourhood (Gould's belt)

● AGSAG represent key UK science input into the wider VO

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Optical – IR

– Redshifts

Optical – IR

– Redshifts

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Science: The AVO Demo: AG Science: The AVO Demo: AG workflowsworkflows

N A Walton : AG Consortium Meeting #7 : NeSC : Edinburgh : Dec 14, 2004 p11 Printed: 14/12/04

The AstroGrid TestbedThe AstroGrid Testbed● Releases deployed on a functional 'Testbed'

– Early release on simple resources– Increasing complexity of testbed with each release– Build to link full range of institutional resources

● Current Testbed consists of:– Publishing Registry (Harvesting NVO registry & CDS): Leicester– MySpace servers: Leicester– Applications servers: Manchester. MSSL– Datacenters: Cambridge, Edinburgh, MSSL

N A Walton : AG Consortium Meeting #7 : NeSC : Edinburgh : Dec 14, 2004 p12 Printed: 14/12/04

AstroGrid Beta TestingAstroGrid Beta TestingInvolvement of the end user communityInvolvement of the end user community

● Beta testing programme to test product releases – Programme includes access to AVO tools

● Beta tester pool composes:– Science Advisory Group– eScience astronomy students– Interested astronomers

● Beta tester programme providing feedback– Importance vital as AstroGrid moves into pre-production use

● Beta testers welcome: http://wiki.astrogrid.org/bin/view/Astrogrid/BetaTesting

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The Next Steps: The Next Steps: Participant in VO Science Demos 2005Participant in VO Science Demos 2005● AstroGrid: Consortium meeting: Today. 14 Dec 2004

— Galaxy distances— Brown dwarf discovery— Solar coronal mass ejections

● Euro-VO: ESAC, Madrid: 25-26 Jan 2005— Star formation histories— AGB to PN transitions

● A Widening range of capabilities, data, applications — Increasing scientific usefulness

● GOAL: end 2005 – science papers enabled by VO

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Next Steps: 2005-2007Next Steps: 2005-2007● AstroGrid at the thresh hold of enabling significant science

– Prioritisation on automating bulk workflows and data access– Working in partnership to link to additional functionality

● Key science programmes for AstroGrid to 2007 and AstroGrid in the Euro-VO being formulated

– Focus on supporting major new (<2007) data flows● e.g. VISTA, Planck, Herschel, VLT

● Science is a major driver in AG2 and VOTECH (Euro-VO) ● GOAL: 2010 for >90% of all science to be VO enabled

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AstroGrid Version 1 Release: Jan 2005AstroGrid Version 1 Release: Jan 2005Prototype Virtual Observatory for the UKPrototype Virtual Observatory for the UK

http://www.astrogrid.org/release