astronomy: from networks to the grid leopoldo benacchio inaf (national institute for astrophysics)...
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Astronomy: from Networks Astronomy: from Networks to the Gridto the Grid
Leopoldo Benacchio
INAF (National Institute for Astrophysics) Padova Astronomical Observatory
Italy
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What really Astronomy is ?What really Astronomy is ?
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.. What ‘bout instruments ..... What ‘bout instruments ...
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.. And what .. And what reallyreally people people think astronomers are…think astronomers are…
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What Astronomy really is ... What Astronomy really is ...
1 : Machinery
2 : Communication
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Once upon a time Once upon a time up to dateup to date supercomputer supercomputer
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More recent efforts : More recent efforts : ephemeredes ephemeredes
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The mother of all the cpu’sThe mother of all the cpu’s
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Communication and Communication and AstronomyAstronomy
Roots are in the Renaissance
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The first “globalised” The first “globalised” ScienceScience
1900 IAU Telegram
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Why communication is so Why communication is so important in Astronomy important in Astronomy
from centuries?from centuries?
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Farthest and farthest …Farthest and farthest …
1906 Los Angeles 1990
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Best places are mountains Best places are mountains in the middle of a desert…in the middle of a desert…
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Where the weather is Where the weather is (generally) good ...(generally) good ...
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And partners are wonderful And partners are wonderful
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Anyway results are Anyway results are encouragingencouraging
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Last 25 years revolution in Last 25 years revolution in Astronomy : IAstronomy : I
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Last 25 years revolution in Last 25 years revolution in Astronomy : IIAstronomy : II
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Last 25 years revolution in Last 25 years revolution in Astronomy : IIIAstronomy : III
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And the most important …And the most important …
Farewell to the
blinding atmosphere
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Space Astronomy: “more Space Astronomy: “more Physics” or a different one?Physics” or a different one?
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Different glasses different Different glasses different phenomena …phenomena …
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Astronomy and NetworksAstronomy and NetworksAstronomy is in the network Development task from the beginning (Span, Italian Astronet)
Second step in Italy (Garr)
In the ‘80 Astronomy is, maybe, the First “All digital Science”
Nowadays GRID
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An “All digital Science”An “All digital Science”End to End cycle on the network:
Observation preparation, Remote observing,
Data Reduction and Analysis,Archiving,
Data mining (virtual observatories),Modelling (theoretical astronomy),
Literature,New ideas for new observation, theory etc.
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That is : ready for the Grid !That is : ready for the Grid !
Network allowed strong communication
The Web allowed documentation sharing
Is the Grid a change of metaphor ? (sharing the work!)
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First steps for the GridFirst steps for the Grid
We are working on Astrophysical applications within the framework of the Italian Grid for Science
(funded by MIUR: 2003-2006)
3 main poles engaged : Padova Trieste, Napoli
7 poles forecasted for the end of the year
Main objective is to determine “astrophysical” requirements for the Grid itself
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Applications: Case study IApplications: Case study IDatabase and Astrophysical Archives
(Planck, TNG, GSCII)
TNG at Canarias
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Applications: Case study IIApplications: Case study IIImage reduction and Analysis of the VST survey
VST is a 2 m. Telescope with a 32.000 x CCD
A “pilot fish” For the 4 VLT giants
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Applications: Case study IIIApplications: Case study IIITelescopes and the Grid : to distribute remote observing
Before grid After grid
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Planck 2007: mapping the Planck 2007: mapping the microwave Universemicrowave Universe
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Data Processing for ESA/PlanckData Processing for ESA/Planck Highly distributed environment (9 sites) Collaborative development – inputs to data processing
pipeline coming from over 30 institutes in over a dozen countries, in Europe and North America)
Each of the DPC “Levels” perform well-specified tasks (simulations, handling of telemetry, production of frequency maps, separation of astrophysical components, preparation of final products)
Need to share efficiently data (raw and at different levels of processing), information, documents, procedures, software
Grid technology likely to be used (EU FP6 SSA proposal to support feasibility study)
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MOC
LFI
DPC
HFI
DPC
PSO
Level S
Garching
Level 1
Level 2
ParisERCSC
Pasadena
Level 4
Garching
Level 3
Cambridge
Level 1
Level 2
Level 3
Level S
Trieste
Darmstadt
Noordwijk
Orsay
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Network, Grid, (Radio) Network, Grid, (Radio) telescopestelescopes
Observing the heavenly bodies at radio frequency
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Network, Grid, (Radio) Network, Grid, (Radio) telescopestelescopes
Resolution is the key point (distance between antennas)
4.5 cm binocular
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Network, Grid, (Radio) Network, Grid, (Radio) telescopestelescopes
Observing the heavenly bodies at radio frequency
If a desertIs availableResolution is better.
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Network, Grid, (Radio) Network, Grid, (Radio) telescopestelescopes
Low resolution
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Network, Grid, (Radio) Network, Grid, (Radio) telescopestelescopes
better resolution
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Network, Grid, (Radio) Network, Grid, (Radio) telescopestelescopes
and even better
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Network, Grid, (Radio) Network, Grid, (Radio) telescopestelescopes
using different distant telescope is the idea Very Large Base interferometry
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Network, Grid, (Radio) Network, Grid, (Radio) telescopestelescopes
Correlation of events is critical and require very-broad-band
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better resolution
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Geant and Geant and
seems enough strong
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Next Step: going farther Next Step: going farther
www.cieloblu.it www.polare.it
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We are in pool position We are in pool position because… because…
The Universe is a GRID !