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Simulations for ALMA

Robert Laing European Instrument Scientist

Simulations for ALMA IRAM, Sept 8 -10 2008


Why do we need simulations?


Decide what science we can do with ALMA Convince the user community and funding agencies to build and operate ALMA Design the instrument


Antenna locations Realistic performance estimates Optimize configuration Coverage, sensitivity Dependence on atmospheric conditions



Tool for observation planning




Work out how to reduce the data
ALMA 2 Simulations for ALMA

Robert Laing European Instrument Scientist


What might we achieve at this meeting?


Find out what simulations have been done for ALMA?


Compare results from different approaches Can we do significantly better?



What can we learn from other projects? Decide what new simulations are needed


More realistic error sources (atmosphere, antenna optics, instrumental) WVR, fast switching, fringe-fitting, ... Polarization Single-dish and array combination issues Deconvolution
ALMA 3

Robert Laing European Instrument Scientist

Simulations for ALMA


What might we achieve at this meeting (2)?


Work out how to make simulations useful for observation preparation and processing


How can simulations best be used to help users to prepare observations? Make a library of simulations?



Sort out the remaining pad location issues

Robert Laing European Instrument Scientist

ALMA 4

Simulations for ALMA