Bibcode
Planck Collaboration; Ade, P. A. R.; Aghanim, N.; Ashdown, M.; Aumont, J.; Baccigalupi, C.; Banday, A. J.; Barreiro, R. B.; Bartolo, N.; Battaner, E.; Benabed, K.; Benoît, A.; Benoit-Lévy, A.; Bernard, J.-P.; Bersanelli, M.; Bielewicz, P.; Bock, J. J.; Bonaldi, A.; Bonavera, L.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Bucher, M.; Burigana, C.; Butler, R. C.; Calabrese, E.; Cardoso, J.-F.; Catalano, A.; Chamballu, A.; Christensen, P. R.; Colombi, S.; Colombo, L. P. L.; Crill, B. P.; Curto, A.; Cuttaia, F.; Danese, L.; Davies, R. D.; Davis, R. J.; de Bernardis, P.; de Rosa, A.; de Zotti, G.; Delabrouille, J.; Dickinson, C.; Diego, J. M.; Dole, H.; Donzelli, S.; Doré, O.; Douspis, M.; Ducout, A.; Dupac, X.; Efstathiou, G.; Elsner, F.; Enßlin, T. A.; Eriksen, H. K.; Fergusson, J.; Finelli, F.; Forni, O.; Frailis, M.; Franceschi, E.; Frejsel, A.; Galeotta, S.; Galli, S.; Ganga, K.; Giard, M.; Giraud-Héraud, Y.; Gjerløw, E.; González-Nuevo, J.; Górski, K. M.; Gratton, S.; Gregorio, A.; Gruppuso, A.; Hansen, F. K.; Hanson, D.; Harrison, D. L.; Henrot-Versillé, S.; Herranz, D.; Hildebrandt, S. R.; Hivon, E.; Hobson, M.; Holmes, W. A.; Hornstrup, A.; Hovest, W.; Huffenberger, K. M.; Hurier, G.; Jaffe, A. H.; Jaffe, T. R.; Juvela, M.; Keihänen, E.; Keskitalo, R.; Kiiveri, K.; Kisner, T. S.; Knoche, J.; Kunz, M.; Kurki-Suonio, H.; Lähteenmäki, A.; Lamarre, J.-M.; Lasenby, A.; Lattanzi, M.; Lawrence, C. R.; Leahy, J. P. et al.
Referencia bibliográfica
Astronomy and Astrophysics, Volume 594, id.A4, 22 pp.
Fecha de publicación:
8
2016
Revista
Número de citas
58
Número de citas referidas
56
Descripción
This paper presents the characterization of the in-flight beams, the
beam window functions, and the associated uncertainties for the Planck
Low Frequency Instrument (LFI). The structure of the paper is similar to
that presented in the 2013 Planck release; the main differences concern
the beam normalization and the delivery of the window functions to be
used for polarization analysis. The in-flight assessment of the LFI main
beams relies on measurements performed during observations of Jupiter.
By stacking data from seven Jupiter transits, the main beam profiles are
measured down to -25 dB at 30 and 44 GHz, and down to -30 dB at 70 GHz.
It has been confirmed that the agreement between the simulated beams and
the measured beams is better than 1% at each LFI frequency band (within
the 20 dB contour from the peak, the rms values are 0.1% at 30 and 70
GHz; 0.2% at 44 GHz). Simulated polarized beams are used for the
computation of the effective beam window functions. The error budget for
the window functions is estimated from both main beam and sidelobe
contributions, and accounts for the radiometer band shapes. The total
uncertainties in the effective beam window functions are 0.7% and 1% at
30 and 44 GHz, respectively (at ℓ ≈ 600); and 0.5% at 70 GHz (at
ℓ ≈ 1000).