Spectroscopic active galaxies and clusters explorer
2009
We present a concept for the payload SAGACE, the Spectroscopic Active Galaxies And Cluster Explorer, devoted to study the evolution of Universe structures using different observables, all of them in the mm∕submm wavelength. The SAGACE payload is made of a passively cooled 3 m telescope, a cryogenic Fourier Transform Spectrometer (FTS) and detector arrays to be operated at 0.3 K by a 3He fridge. The detectors are Ti∕Au Transition Edge Sensor (TES) bolometers with a NEP<10−17 W/Hz½. A phase‐A study has been recently completed for this experiment, in the framework of the call for small missions of the Italian Space Agency.
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