The Edison Infrared Space Observatory

Details The Edison Infrared Space Observatory The Edison Infrared Space Observatory

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ssrv...74..139t&link_type=abstract

Space Science Reviews, Volume 74, Issue 1-2, pp. 139-144

Physics

1

Scientific paper

For five years, theEdison program has had the goal of developing new designs for infrared space observatories which will “break the cost curve” by permitting more capable missions at lower cost. Most notably, this has produced a series of models for purely radiative and radiative/mechanical (“hybrid”) cooling which do not use cryogens and optical designs which are not constrained by the coolant tanks. Purely radiatively-cooled models achieve equilibrium temperatures as low as about 20 K at a distance of 1 AU from the sun. More advancedEdison designs include mechanical cooling systems attached to the telescope assembly which lower the optical system temperature to ≃5 K or less. Via these designs, near-cryogenic temperatures appear achievable without the limitations of cryogenic cooling. OneEdison model has been proposed to the European Space Agency as the next generation infrared space observatory and is presently under consideration as a candidate ESA “Cornerstone” mission. The basic design is also the starting point for elements of future infrared space interferometers.

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