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A.S. Szalay (The Johns Hopkins University), T. Axelrod (University of Arizona), J. Gray (Microsoft Research), R.H. Lupton (Princeton University), R. Pike (Google)
Astronomy, like High Energy Physics, will bring GB/sec instruments on line within the next decade. As the example of the LHC shows, both technical and political forces imply a multi-tiered architecture in which all data is replicated for reliabilty and performance at several Tier-1 centers and extracts will be stored at many Tier-2 sites. This suggests a world-wide federation of about 10 peta-scale sites, each associated with an LSST-class instrument, interconnected with high-speed networking, forming the core of the Virtual Observatory. Unlike HEP, there is great interest in cross-correlating astronomy data from multiple instruments and telescopes. Users need easy access to data from all sites and some will want to build their own Tier-2 archives. The real-time nature of LSST (and probably other instruments) forces substantial archive and processing facilities co-located with the telescopes.
The author(s) of this abstract have provided an email address for comments about the abstract: szalay@jhu.edu
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Bulletin of the American Astronomical Society, 36 5
© 2004. The American Astronomical Society.