Predictions of Spectral Parameters by Several Inflationary Universe Models in Light of the Planck
Planck LFI: Mapping first light in the universe
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Transcript of Planck LFI: Mapping first light in the universe
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Planck-LFILow Frequency Instrument
Mapping the first light in the Universe
Marco Bersanelli, University of MilanoDarmstadt19 March 2009
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Planck-LFI: Wavelength range
30 GHz44 GHz 70 GHz
30, 44 GHz: Monitor Galacic emission at low frequency70 GHz: Cleanest window for CMB
30 GHz30 GHz 44 GHz44 GHz70 GHz70 GHz
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Document title | Author Name | Place | Data doc | Programme | Pag. 3
Planck-LFI: Differential Radiometers
– Sensitivity (ΔT/T ∼ 3 × 10-6/pix)
– Stability (fK ∼ 10-2 Hz)
Sky signal
Ref signal
Difference
20K
300K
4K
Unprecedented performances:
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Qualification Model (QM)Qualification Model (QM)
Unit Assembly Instrument Satellite In-flight
Flight Model (FM)Flight Model (FM)
CompletedCompleted CompletedCompleted CompletedCompleted
CompletedCompleted ReadyReady
Supported by Data Processing Center
LFI
CompletedCompleted CompletedCompleted
CompletedCompleted
CompletedCompleted
HFI
CSL Campaign
Planck-LFI: Instrument Calibration