4 papers
Planck early results. III. First assessment of the Low Frequency Instrument in-flight performance
A. Mennella, M. Bersanelli, R. C. Butler +158
The scientific performance of the Planck Low Frequency Instrument (LFI) after one year of in-orbit operation is presented. We describe the main optical parameters and discuss photo…
Planck Early Results. II. The thermal performance of Planck
Planck Collaboration, P. A. R. Ade, N. Aghanim +225
The performance of the Planck instruments in space is enabled by their low operating temperatures, 20K for LFI and 0.1K for HFI, achieved through a combination of passive radiative…
Planck pre-launch status: Design and description of the Low Frequency Instrument
M. Bersanelli, N. Mandolesi, R. C. Butler +109
In this paper we present the Low Frequency Instrument (LFI), designed and developed as part of the Planck space mission, the ESA program dedicated to precision imaging of the cosmi…
Planck pre-launch status: the Planck-LFI programme
N. Mandolesi, M. Bersanelli, R. C. Butler +140
This paper provides an overview of the Low Frequency Instrument (LFI) programme within the ESA Planck mission. The LFI instrument has been developed to produce high precision maps…