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Palomar Testbed Interferometer (PTI)


An experimental arrangement at Palomar Observatory, funded by NASA, to demonstrate key technologies that will be used in the Keck interferometer and, eventually, in future space-based interferometers, such as the Space Interferometry Mission. Light from a cosmic source is collected by three small telescopes located in separate buildings about 110 m apart and directed through pipes to a central building where the beams are combined.


References

  1. Colavitta, M., et al. "The Palomar Testbed Interferometer," Astrophysical Journal, 510, 505 (1999).

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