Planck 2015 results. V. LFI calibration
Journal
Date Issued
2016
Author(s)
Planck Collaboration
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Ade, P. A. R.
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Aghanim, N.
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Ashdown, M.
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Aumont, J.
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Baccigalupi, C.
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Banday, A. J.
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Barreiro, R. B.
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Bartolo, N.
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Battaner, E.
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Hansen, F. K.
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Hanson, D.
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Harrison, D. L.
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Henrot-Versillé, S.
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Herranz, D.
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Hildebrandt, S. R.
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Hivon, E.
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Hobson, M.
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Holmes, W. A.
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López-Caniego, M.
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Stolyarov, V.
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Hornstrup, A.
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Hovest, W.
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Huffenberger, K. M.
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Hurier, G.
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Jaffe, A. H.
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Jaffe, T. R.
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Juvela, M.
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Keihänen, E.
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Keskitalo, R.
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Kisner, T. S.
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Sutton, D.
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Lubin, P. M.
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Knoche, J.
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Krachmalnicoff, N.
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Kunz, M.
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Kurki-Suonio, H.
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Lagache, G.
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Lähteenmäki, A.
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Lamarre, J. -M.
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Lasenby, A.
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Lattanzi, M.
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Suur-Uski, A. -S.
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Benabed, K.
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Macías-Pérez, J. F.
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Maino, D.
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Mandolesi, N.
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Mangilli, A.
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Martin, P. G.
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Martínez-González, E.
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Masi, S.
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Sygnet, J. -F.
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Matarrese, S.
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Benoît, A.
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McGehee, P.
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Meinhold, P. R.
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Melchiorri, A.
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Mendes, L.
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Mennella, A.
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Migliaccio, M.
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Mitra, S.
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Montier, L.
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Tauber, J. A.
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Mortlock, D.
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Benoit-Lévy, A.
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Moss, A.
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Munshi, D.
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Murphy, J. A.
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Naselsky, P.
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Nati, F.
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Natoli, P.
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Netterfield, C. B.
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Nørgaard-Nielsen, H. U.
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Novikov, D.
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Novikov, I.
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Bernard, J. -P.
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Paci, F.
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Pagano, L.
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Pajot, F.
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Partridge, B.
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Pasian, F.
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Patanchon, G.
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Pearson, T. J.
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Peel, M.
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Perdereau, O.
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Bersanelli, M.
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Perotto, L.
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Perrotta, F.
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Pettorino, V.
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Piacentini, F.
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Pierpaoli, E.
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Toffolatti, L.
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Pietrobon, D.
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Pointecouteau, E.
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Polenta, G.
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Pratt, G. W.
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Prézeau, G.
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Bielewicz, P.
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Prunet, S.
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Puget, J. -L.
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Rachen, J. P.
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Rebolo, R.
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Tomasi, M.
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Reinecke, M.
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Remazeilles, M.
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Renzi, A.
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Rocha, G.
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Rosset, C.
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Bock, J. J.
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Roudier, G.
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Rubiño-Martín, J. A.
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Bonavera, L.
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Rusholme, B.
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Santos, D.
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Savelainen, M.
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Scott, D.
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Seiffert, M. D.
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Shellard, E. P. S.
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Bonaldi, A.
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Spencer, L. D.
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Lawrence, C. R.
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Tristram, M.
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Tucci, M.
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Tuovinen, J.
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Türler, M.
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•
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Valiviita, J.
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Van Tent, B.
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Vassallo, T.
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Vielva, P.
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Leahy, J. P.
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Bond, J. R.
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Wade, L. A.
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Wandelt, B. D.
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Watson, R.
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Wehus, I. K.
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Wilkinson, A.
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Yvon, D.
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Zonca, A.
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Leonardi, R.
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Borrill, J.
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Bouchet, F. R.
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Bucher, M.
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Butler, R. C.
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Calabrese, E.
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Cardoso, J. -F.
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Catalano, A.
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Chamballu, A.
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Christensen, P. R.
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Lesgourgues, J.
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Colombi, S.
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Colombo, L. P. L.
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Crill, B. P.
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Curto, A.
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Danese, L.
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Davies, R. D.
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Davis, R. J.
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de Bernardis, P.
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Levrier, F.
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de Zotti, G.
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Delabrouille, J.
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Dickinson, C.
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Diego, J. M.
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Dole, H.
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Donzelli, S.
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Doré, O.
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Douspis, M.
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Ducout, A.
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Dupac, X.
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Liguori, M.
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Efstathiou, G.
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Elsner, F.
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Enßlin, T. A.
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Eriksen, H. K.
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Fergusson, J.
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Forni, O.
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Frejsel, A.
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Lilje, P. B.
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Galli, S.
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Ganga, K.
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Giard, M.
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Giraud-Héraud, Y.
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Gjerløw, E.
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González-Nuevo, J.
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Górski, K. M.
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Gratton, S.
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Gregorio, A.
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Linden-Vørnle, M.
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Abstract
We present a description of the pipeline used to calibrate the Planck Low Frequency Instrument (LFI) timelines into thermodynamic temperatures for the Planck 2015 data release, covering four years of uninterrupted operations. As in the 2013 data release, our calibrator is provided by the spin-synchronous modulation of the cosmic microwave background dipole, but we now use the orbital component, rather than adopting the Wilkinson Microwave Anisotropy Probe (WMAP) solar dipole. This allows our 2015 LFI analysis to provide an independent Solar dipole estimate, which is in excellent agreement with that of HFI and within 1σ (0.3% in amplitude) of the WMAP value. This 0.3% shift in the peak-to-peak dipole temperature from WMAP and a general overhaul of the iterative calibration code increases the overall level of the LFI maps by 0.45% (30 GHz), 0.64% (44 GHz), and 0.82% (70 GHz) in temperature with respect to the 2013 Planck data release, thus reducing the discrepancy with the power spectrum measured by WMAP. We estimate that the LFI calibration uncertainty is now at the level of 0.20% for the 70 GHz map, 0.26% for the 44 GHz map, and 0.35% for the 30 GHz map. We provide a detailed description of the impact of all the changes implemented in the calibration since the previous data release.
Volume
594
Start page
A5
Issn Identifier
0004-6361
Ads BibCode
2016A&A...594A...5P
Rights
open.access
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