Planck 2015 results. V. LFI calibration

Planck Collaboration; P A R Ade; N Aghanim; M Ashdown; J Aumont; C Baccigalupi; A J Banday; R B Barreiro; N Bartolo; P Battaglia; E Battaner; K Benabed; A Beno??t; A Benoit-L??vy; J-P Bernard; M Bersanelli; P Bielewicz; J J Bock; A Bonaldi; L Bonavera; J R Bond; J Borrill; F R Bouchet; M Bucher; C Burigana; R C Butler; E Calabrese; J-F Cardoso; A Catalano; A Chamballu; P R Christensen; S Colombi; L P L Colombo; B P Crill; A Curto; F Cuttaia; L Danese; R D Davies; R J Davis; P de Bernardis; A de Rosa; G de Zotti; J Delabrouille; C Dickinson; J M Diego; H Dole; S Donzelli; O Dor??; M Douspis; A Ducout; X Dupac; G Efstathiou; F Elsner; T A En??lin; H K Eriksen; J Fergusson; F Finelli; O Forni; M Frailis; E Franceschi; A Frejsel; S Galeotta; S Galli; K Ganga; M Giard; Y Giraud-H??raud; E Gjerl??w; J Gonz??lez-Nuevo; K M G??rski; S Gratton; A Gregorio; A Gruppuso; F K Hansen; D Hanson; D L Harrison; S Henrot-Versill??; D Herranz; S R Hildebrandt; E Hivon; M Hobson; W A Holmes; A Hornstrup; W Hovest; K M Huffenberger; G Hurier; A H Jaffe; T R Jaffe; M Juvela; E Keih??nen; R Keskitalo; T S Kisner; J Knoche; N Krachmalnicoff; M Kunz; H Kurki-Suonio; G Lagache; A L??hteenm??ki; J-M Lamarre; A Lasenby; M Lattanzi; C R Lawrence; J P Leahy; R Leonardi; J Lesgourgues; F Levrier; M Liguori; P B Lilje; M Linden-V??rnle; M L??pez-Caniego; P M Lubin; J F Mac??as-P??rez; G Maggio; D Maino; N Mandolesi; A Mangilli; M Maris; P G Martin; E Mart??nez-Gonz??lez; S Masi; S Matarrese; P McGehee; P R Meinhold; A Melchiorri; L Mendes; A Mennella; M Migliaccio; S Mitra; L Montier; G Morgante; D Mortlock; A Moss; D Munshi; J A Murphy; P Naselsky; F Nati; P Natoli; C B Netterfield; H U N??rgaard-Nielsen; D Novikov; I Novikov; F Paci; L Pagano; F Pajot; D Paoletti; B Partridge; F Pasian; G Patanchon; T J Pearson; Michael Peel; O Perdereau; L Perotto; F Perrotta; V Pettorino; F Piacentini; E Pierpaoli; D Pietrobon; E Pointecouteau; G Polenta; G W Pratt; G Pr??zeau; S Prunet; J-L Puget; J P Rachen; R Rebolo; M Reinecke; M Remazeilles; A Renzi; G Rocha; E Romelli; C Rosset; M Rossetti; G Roudier; J A Rubi??o-Mart??n; B Rusholme; M Sandri; D Santos; M Savelainen; D Scott; M D Seiffert; E P S Shellard; L D Spencer; V Stolyarov; D Sutton; A-S Suur-Uski; J-F Sygnet; J A Tauber; D Tavagnacco; L Terenzi; L Toffolatti; M Tomasi; M Tristram; M Tucci; J Tuovinen; M T??rler; G Umana; L Valenziano; J Valiviita; B Van Tent; T Vassallo; P Vielva; F Villa; L A Wade; B D Wandelt; R Watson; I K Wehus; A Wilkinson; D Yvon; A Zacchei; A Zonca

doi:10.1051/0004-6361/201526632

Planck 2015 results. V. LFI calibration

Planck Collaboration, P A R Ade, N Aghanim, M Ashdown, J Aumont, C Baccigalupi, A J Banday, R B Barreiro, N Bartolo, P Battaglia, E Battaner, K Benabed, A Beno??t, A Benoit-L??vy, J-P Bernard, M Bersanelli, P Bielewicz, J J Bock, A Bonaldi, L BonaveraJ R Bond, J Borrill, F R Bouchet, M Bucher, C Burigana, R C Butler, E Calabrese, J-F Cardoso, A Catalano, A Chamballu, P R Christensen, S Colombi, L P L Colombo, B P Crill, A Curto, F Cuttaia, L Danese, R D Davies, R J Davis, P de Bernardis, A de Rosa, G de Zotti, J Delabrouille, C Dickinson, J M Diego, H Dole, S Donzelli, O Dor??, M Douspis, A Ducout, X Dupac, G Efstathiou, F Elsner, T A En??lin, H K Eriksen, J Fergusson, F Finelli, O Forni, M Frailis, E Franceschi, A Frejsel, S Galeotta, S Galli, K Ganga, M Giard, Y Giraud-H??raud, E Gjerl??w, J Gonz??lez-Nuevo, K M G??rski, S Gratton, A Gregorio, A Gruppuso, F K Hansen, D Hanson, D L Harrison, S Henrot-Versill??, D Herranz, S R Hildebrandt, E Hivon, M Hobson, W A Holmes, A Hornstrup, W Hovest, K M Huffenberger, G Hurier, A H Jaffe, T R Jaffe, M Juvela, E Keih??nen, R Keskitalo, T S Kisner, J Knoche, N Krachmalnicoff, M Kunz, H Kurki-Suonio, G Lagache, A L??hteenm??ki, J-M Lamarre, A Lasenby, M Lattanzi, C R Lawrence, J P Leahy, R Leonardi, J Lesgourgues, F Levrier, M Liguori, P B Lilje, M Linden-V??rnle, M L??pez-Caniego, P M Lubin, J F Mac??as-P??rez, G Maggio, D Maino, N Mandolesi, A Mangilli, M Maris, P G Martin, E Mart??nez-Gonz??lez, S Masi, S Matarrese, P McGehee, P R Meinhold, A Melchiorri, L Mendes, A Mennella, M Migliaccio, S Mitra, L Montier, G Morgante, D Mortlock, A Moss, D Munshi, J A Murphy, P Naselsky, F Nati, P Natoli, C B Netterfield, H U N??rgaard-Nielsen, D Novikov, I Novikov, F Paci, L Pagano, F Pajot, D Paoletti, B Partridge, F Pasian, G Patanchon, T J Pearson, Michael Peel, O Perdereau, L Perotto, F Perrotta, V Pettorino, F Piacentini, E Pierpaoli, D Pietrobon, E Pointecouteau, G Polenta, G W Pratt, G Pr??zeau, S Prunet, J-L Puget, J P Rachen, R Rebolo, M Reinecke, M Remazeilles, A Renzi, G Rocha, E Romelli, C Rosset, M Rossetti, G Roudier, J A Rubi??o-Mart??n, B Rusholme, M Sandri, D Santos, M Savelainen, D Scott, M D Seiffert, E P S Shellard, L D Spencer, V Stolyarov, D Sutton, A-S Suur-Uski, J-F Sygnet, J A Tauber, D Tavagnacco, L Terenzi, L Toffolatti, M Tomasi, M Tristram, M Tucci, J Tuovinen, M T??rler, G Umana, L Valenziano, J Valiviita, B Van Tent, T Vassallo, P Vielva, F Villa, L A Wade, B D Wandelt, R Watson, I K Wehus, A Wilkinson, D Yvon, A Zacchei, A Zonca

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Abstract

We present a description of the pipeline used to calibrate the Planck Low Frequency Instrument (LFI) timelines into thermodynamic temperaturesfor the Planck 2015 data release, covering four years of uninterruptedoperations. As in the 2013 data release, our calibrator is provided bythe spin-synchronous modulation of the cosmic microwave backgrounddipole, but we now use the orbital component, rather than adopting theWilkinson Microwave Anisotropy Probe (WMAP) solar dipole. This allowsour 2015 LFI analysis to provide an independent Solar dipole estimate,which is in excellent agreement with that of HFI and within \$1{\textbackslash}sigma\$(0.3\% in amplitude) of the WMAP value. This 0.3\% shift in thepeak-to-peak dipole temperature from WMAP and a global overhaul of theiterative calibration code increases the overall level of the LFI mapsby 0.45\% (30 GHz), 0.64\% (44 GHz), and 0.82\% (70 GHz) in temperaturewith respect to the 2013 Planck data release, thus reducing thediscrepancy with the power spectrum measured by WMAP. We estimate thatthe LFI calibration uncertainty is now at the level of 0.20\% for the 70GHz map, 0.26\% for the 44 GHz map, and 0.35\% for the 30 GHz map. Weprovide a detailed description of the impact of all the changesimplemented in the calibration since the previous data release.

Original language	English
Journal	Astronomy and Astrophysics
Volume	594
Early online date	20 Sept 2016
DOIs	https://doi.org/10.1051/0004-6361/201526632
Publication status	Published - Oct 2016

Keywords

Astrophysics - Instrumentation and Methods for Astrophysics
Astrophysics - Cosmology and Nongalactic Astrophysics

Access to Document

10.1051/0004-6361/201526632

aa26632-15Accepted author manuscript, 4.06 MB

http://adsabs.harvard.edu/abs/2015arXiv150508022P

Cite this

Collaboration, P., Ade, P. A. R., Aghanim, N., Ashdown, M., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartolo, N., Battaglia, P., Battaner, E., Benabed, K., Beno??t, A., Benoit-L??vy, A., Bernard, J-P., Bersanelli, M., Bielewicz, P., Bock, J. J., Bonaldi, A., ... Zonca, A. (2016). Planck 2015 results. V. LFI calibration. Astronomy and Astrophysics, 594. Advance online publication. https://doi.org/10.1051/0004-6361/201526632

@article{7bae93b037964976b7de6cad670eb969,

title = "Planck 2015 results. V. LFI calibration",

abstract = "We present a description of the pipeline used to calibrate the Planck Low Frequency Instrument (LFI) timelines into thermodynamic temperaturesfor the Planck 2015 data release, covering four years of uninterruptedoperations. As in the 2013 data release, our calibrator is provided bythe spin-synchronous modulation of the cosmic microwave backgrounddipole, but we now use the orbital component, rather than adopting theWilkinson Microwave Anisotropy Probe (WMAP) solar dipole. This allowsour 2015 LFI analysis to provide an independent Solar dipole estimate,which is in excellent agreement with that of HFI and within \$1{\textbackslash}sigma\$(0.3\% in amplitude) of the WMAP value. This 0.3\% shift in thepeak-to-peak dipole temperature from WMAP and a global overhaul of theiterative calibration code increases the overall level of the LFI mapsby 0.45\% (30 GHz), 0.64\% (44 GHz), and 0.82\% (70 GHz) in temperaturewith respect to the 2013 Planck data release, thus reducing thediscrepancy with the power spectrum measured by WMAP. We estimate thatthe LFI calibration uncertainty is now at the level of 0.20\% for the 70GHz map, 0.26\% for the 44 GHz map, and 0.35\% for the 30 GHz map. Weprovide a detailed description of the impact of all the changesimplemented in the calibration since the previous data release.",

keywords = "Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics",

author = "Planck Collaboration and Ade, {P A R} and N Aghanim and M Ashdown and J Aumont and C Baccigalupi and Banday, {A J} and Barreiro, {R B} and N Bartolo and P Battaglia and E Battaner and K Benabed and A Beno??t and A Benoit-L??vy and J-P Bernard and M Bersanelli and P Bielewicz and Bock, {J J} and A Bonaldi and L Bonavera and Bond, {J R} and J Borrill and Bouchet, {F R} and M Bucher and C Burigana and Butler, {R C} and E Calabrese and J-F Cardoso and A Catalano and A Chamballu and Christensen, {P R} and S Colombi and Colombo, {L P L} and Crill, {B P} and A Curto and F Cuttaia and L Danese and Davies, {R D} and Davis, {R J} and {de Bernardis}, P and {de Rosa}, A and {de Zotti}, G and J Delabrouille and C Dickinson and Diego, {J M} and H Dole and S Donzelli and O Dor?? and M Douspis and A Ducout and X Dupac and G Efstathiou and F Elsner and En??lin, {T A} and Eriksen, {H K} and J Fergusson and F Finelli and O Forni and M Frailis and E Franceschi and A Frejsel and S Galeotta and S Galli and K Ganga and M Giard and Y Giraud-H??raud and E Gjerl??w and J Gonz??lez-Nuevo and G??rski, {K M} and S Gratton and A Gregorio and A Gruppuso and Hansen, {F K} and D Hanson and Harrison, {D L} and S Henrot-Versill?? and D Herranz and Hildebrandt, {S R} and E Hivon and M Hobson and Holmes, {W A} and A Hornstrup and W Hovest and Huffenberger, {K M} and G Hurier and Jaffe, {A H} and Jaffe, {T R} and M Juvela and E Keih??nen and R Keskitalo and Kisner, {T S} and J Knoche and N Krachmalnicoff and M Kunz and H Kurki-Suonio and G Lagache and A L??hteenm??ki and J-M Lamarre and A Lasenby and M Lattanzi and Lawrence, {C R} and Leahy, {J P} and R Leonardi and J Lesgourgues and F Levrier and M Liguori and Lilje, {P B} and M Linden-V??rnle and M L??pez-Caniego and Lubin, {P M} and Mac??as-P??rez, {J F} and G Maggio and D Maino and N Mandolesi and A Mangilli and M Maris and Martin, {P G} and E Mart??nez-Gonz??lez and S Masi and S Matarrese and P McGehee and Meinhold, {P R} and A Melchiorri and L Mendes and A Mennella and M Migliaccio and S Mitra and L Montier and G Morgante and D Mortlock and A Moss and D Munshi and Murphy, {J A} and P Naselsky and F Nati and P Natoli and Netterfield, {C B} and N??rgaard-Nielsen, {H U} and D Novikov and I Novikov and F Paci and L Pagano and F Pajot and D Paoletti and B Partridge and F Pasian and G Patanchon and Pearson, {T J} and Michael Peel and O Perdereau and L Perotto and F Perrotta and V Pettorino and F Piacentini and E Pierpaoli and D Pietrobon and E Pointecouteau and G Polenta and Pratt, {G W} and G Pr??zeau and S Prunet and J-L Puget and Rachen, {J P} and R Rebolo and M Reinecke and M Remazeilles and A Renzi and G Rocha and E Romelli and C Rosset and M Rossetti and G Roudier and Rubi??o-Mart??n, {J A} and B Rusholme and M Sandri and D Santos and M Savelainen and D Scott and Seiffert, {M D} and Shellard, {E P S} and Spencer, {L D} and V Stolyarov and D Sutton and A-S Suur-Uski and J-F Sygnet and Tauber, {J A} and D Tavagnacco and L Terenzi and L Toffolatti and M Tomasi and M Tristram and M Tucci and J Tuovinen and M T??rler and G Umana and L Valenziano and J Valiviita and {Van Tent}, B and T Vassallo and P Vielva and F Villa and Wade, {L A} and Wandelt, {B D} and R Watson and Wehus, {I K} and A Wilkinson and D Yvon and A Zacchei and A Zonca",

year = "2016",

month = oct,

doi = "10.1051/0004-6361/201526632",

language = "English",

volume = "594",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

Collaboration, P, Ade, PAR, Aghanim, N, Ashdown, M, Aumont, J, Baccigalupi, C, Banday, AJ, Barreiro, RB, Bartolo, N, Battaglia, P, Battaner, E, Benabed, K, Beno??t, A, Benoit-L??vy, A, Bernard, J-P, Bersanelli, M, Bielewicz, P, Bock, JJ, Bonaldi, A, Bonavera, L, Bond, JR, Borrill, J, Bouchet, FR, Bucher, M, Burigana, C, Butler, RC, Calabrese, E, Cardoso, J-F, Catalano, A, Chamballu, A, Christensen, PR, Colombi, S, Colombo, LPL, Crill, BP, Curto, A, Cuttaia, F, Danese, L, Davies, RD, Davis, RJ, de Bernardis, P, de Rosa, A, de Zotti, G, Delabrouille, J, Dickinson, C, Diego, JM, Dole, H, Donzelli, S, Dor??, O, Douspis, M, Ducout, A, Dupac, X, Efstathiou, G, Elsner, F, En??lin, TA, Eriksen, HK, Fergusson, J, Finelli, F, Forni, O, Frailis, M, Franceschi, E, Frejsel, A, Galeotta, S, Galli, S, Ganga, K, Giard, M, Giraud-H??raud, Y, Gjerl??w, E, Gonz??lez-Nuevo, J, G??rski, KM, Gratton, S, Gregorio, A, Gruppuso, A, Hansen, FK, Hanson, D, Harrison, DL, Henrot-Versill??, S, Herranz, D, Hildebrandt, SR, Hivon, E, Hobson, M, Holmes, WA, Hornstrup, A, Hovest, W, Huffenberger, KM, Hurier, G, Jaffe, AH, Jaffe, TR, Juvela, M, Keih??nen, E, Keskitalo, R, Kisner, TS, Knoche, J, Krachmalnicoff, N, Kunz, M, Kurki-Suonio, H, Lagache, G, L??hteenm??ki, A, Lamarre, J-M, Lasenby, A, Lattanzi, M, Lawrence, CR, Leahy, JP, Leonardi, R, Lesgourgues, J, Levrier, F, Liguori, M, Lilje, PB, Linden-V??rnle, M, L??pez-Caniego, M, Lubin, PM, Mac??as-P??rez, JF, Maggio, G, Maino, D, Mandolesi, N, Mangilli, A, Maris, M, Martin, PG, Mart??nez-Gonz??lez, E, Masi, S, Matarrese, S, McGehee, P, Meinhold, PR, Melchiorri, A, Mendes, L, Mennella, A, Migliaccio, M, Mitra, S, Montier, L, Morgante, G, Mortlock, D, Moss, A, Munshi, D, Murphy, JA, Naselsky, P, Nati, F, Natoli, P, Netterfield, CB, N??rgaard-Nielsen, HU, Novikov, D, Novikov, I, Paci, F, Pagano, L, Pajot, F, Paoletti, D, Partridge, B, Pasian, F, Patanchon, G, Pearson, TJ, Peel, M, Perdereau, O, Perotto, L, Perrotta, F, Pettorino, V, Piacentini, F, Pierpaoli, E, Pietrobon, D, Pointecouteau, E, Polenta, G, Pratt, GW, Pr??zeau, G, Prunet, S, Puget, J-L, Rachen, JP, Rebolo, R, Reinecke, M, Remazeilles, M, Renzi, A, Rocha, G, Romelli, E, Rosset, C, Rossetti, M, Roudier, G, Rubi??o-Mart??n, JA, Rusholme, B, Sandri, M, Santos, D, Savelainen, M, Scott, D, Seiffert, MD, Shellard, EPS, Spencer, LD, Stolyarov, V, Sutton, D, Suur-Uski, A-S, Sygnet, J-F, Tauber, JA, Tavagnacco, D, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Tucci, M, Tuovinen, J, T??rler, M, Umana, G, Valenziano, L, Valiviita, J, Van Tent, B, Vassallo, T, Vielva, P, Villa, F, Wade, LA, Wandelt, BD, Watson, R, Wehus, IK, Wilkinson, A, Yvon, D, Zacchei, A & Zonca, A 2016, 'Planck 2015 results. V. LFI calibration', Astronomy and Astrophysics, vol. 594. https://doi.org/10.1051/0004-6361/201526632

TY - JOUR

T1 - Planck 2015 results. V. LFI calibration

AU - Collaboration, Planck

AU - Ade, P A R

AU - Aghanim, N

AU - Ashdown, M

AU - Aumont, J

AU - Baccigalupi, C

AU - Banday, A J

AU - Barreiro, R B

AU - Bartolo, N

AU - Battaglia, P

AU - Battaner, E

AU - Benabed, K

AU - Beno??t, A

AU - Benoit-L??vy, A

AU - Bernard, J-P

AU - Bersanelli, M

AU - Bielewicz, P

AU - Bock, J J

AU - Bonaldi, A

AU - Bonavera, L

AU - Bond, J R

AU - Borrill, J

AU - Bouchet, F R

AU - Bucher, M

AU - Burigana, C

AU - Butler, R C

AU - Calabrese, E

AU - Cardoso, J-F

AU - Catalano, A

AU - Chamballu, A

AU - Christensen, P R

AU - Colombi, S

AU - Colombo, L P L

AU - Crill, B P

AU - Curto, A

AU - Cuttaia, F

AU - Danese, L

AU - Davies, R D

AU - Davis, R J

AU - de Bernardis, P

AU - de Rosa, A

AU - de Zotti, G

AU - Delabrouille, J

AU - Dickinson, C

AU - Diego, J M

AU - Dole, H

AU - Donzelli, S

AU - Dor??, O

AU - Douspis, M

AU - Ducout, A

AU - Dupac, X

AU - Efstathiou, G

AU - Elsner, F

AU - En??lin, T A

AU - Eriksen, H K

AU - Fergusson, J

AU - Finelli, F

AU - Forni, O

AU - Frailis, M

AU - Franceschi, E

AU - Frejsel, A

AU - Galeotta, S

AU - Galli, S

AU - Ganga, K

AU - Giard, M

AU - Giraud-H??raud, Y

AU - Gjerl??w, E

AU - Gonz??lez-Nuevo, J

AU - G??rski, K M

AU - Gratton, S

AU - Gregorio, A

AU - Gruppuso, A

AU - Hansen, F K

AU - Hanson, D

AU - Harrison, D L

AU - Henrot-Versill??, S

AU - Herranz, D

AU - Hildebrandt, S R

AU - Hivon, E

AU - Hobson, M

AU - Holmes, W A

AU - Hornstrup, A

AU - Hovest, W

AU - Huffenberger, K M

AU - Hurier, G

AU - Jaffe, A H

AU - Jaffe, T R

AU - Juvela, M

AU - Keih??nen, E

AU - Keskitalo, R

AU - Kisner, T S

AU - Knoche, J

AU - Krachmalnicoff, N

AU - Kunz, M

AU - Kurki-Suonio, H

AU - Lagache, G

AU - L??hteenm??ki, A

AU - Lamarre, J-M

AU - Lasenby, A

AU - Lattanzi, M

AU - Lawrence, C R

AU - Leahy, J P

AU - Leonardi, R

AU - Lesgourgues, J

AU - Levrier, F

AU - Liguori, M

AU - Lilje, P B

AU - Linden-V??rnle, M

AU - L??pez-Caniego, M

AU - Lubin, P M

AU - Mac??as-P??rez, J F

AU - Maggio, G

AU - Maino, D

AU - Mandolesi, N

AU - Mangilli, A

AU - Maris, M

AU - Martin, P G

AU - Mart??nez-Gonz??lez, E

AU - Masi, S

AU - Matarrese, S

AU - McGehee, P

AU - Meinhold, P R

AU - Melchiorri, A

AU - Mendes, L

AU - Mennella, A

AU - Migliaccio, M

AU - Mitra, S

AU - Montier, L

AU - Morgante, G

AU - Mortlock, D

AU - Moss, A

AU - Munshi, D

AU - Murphy, J A

AU - Naselsky, P

AU - Nati, F

AU - Natoli, P

AU - Netterfield, C B

AU - N??rgaard-Nielsen, H U

AU - Novikov, D

AU - Novikov, I

AU - Paci, F

AU - Pagano, L

AU - Pajot, F

AU - Paoletti, D

AU - Partridge, B

AU - Pasian, F

AU - Patanchon, G

AU - Pearson, T J

AU - Peel, Michael

AU - Perdereau, O

AU - Perotto, L

AU - Perrotta, F

AU - Pettorino, V

AU - Piacentini, F

AU - Pierpaoli, E

AU - Pietrobon, D

AU - Pointecouteau, E

AU - Polenta, G

AU - Pratt, G W

AU - Pr??zeau, G

AU - Prunet, S

AU - Puget, J-L

AU - Rachen, J P

AU - Rebolo, R

AU - Reinecke, M

AU - Remazeilles, M

AU - Renzi, A

AU - Rocha, G

AU - Romelli, E

AU - Rosset, C

AU - Rossetti, M

AU - Roudier, G

AU - Rubi??o-Mart??n, J A

AU - Rusholme, B

AU - Sandri, M

AU - Santos, D

AU - Savelainen, M

AU - Scott, D

AU - Seiffert, M D

AU - Shellard, E P S

AU - Spencer, L D

AU - Stolyarov, V

AU - Sutton, D

AU - Suur-Uski, A-S

AU - Sygnet, J-F

AU - Tauber, J A

AU - Tavagnacco, D

AU - Terenzi, L

AU - Toffolatti, L

AU - Tomasi, M

AU - Tristram, M

AU - Tucci, M

AU - Tuovinen, J

AU - T??rler, M

AU - Umana, G

AU - Valenziano, L

AU - Valiviita, J

AU - Van Tent, B

AU - Vassallo, T

AU - Vielva, P

AU - Villa, F

AU - Wade, L A

AU - Wandelt, B D

AU - Watson, R

AU - Wehus, I K

AU - Wilkinson, A

AU - Yvon, D

AU - Zacchei, A

AU - Zonca, A

PY - 2016/10

Y1 - 2016/10

N2 - We present a description of the pipeline used to calibrate the Planck Low Frequency Instrument (LFI) timelines into thermodynamic temperaturesfor the Planck 2015 data release, covering four years of uninterruptedoperations. As in the 2013 data release, our calibrator is provided bythe spin-synchronous modulation of the cosmic microwave backgrounddipole, but we now use the orbital component, rather than adopting theWilkinson Microwave Anisotropy Probe (WMAP) solar dipole. This allowsour 2015 LFI analysis to provide an independent Solar dipole estimate,which is in excellent agreement with that of HFI and within \$1{\textbackslash}sigma\$(0.3\% in amplitude) of the WMAP value. This 0.3\% shift in thepeak-to-peak dipole temperature from WMAP and a global overhaul of theiterative calibration code increases the overall level of the LFI mapsby 0.45\% (30 GHz), 0.64\% (44 GHz), and 0.82\% (70 GHz) in temperaturewith respect to the 2013 Planck data release, thus reducing thediscrepancy with the power spectrum measured by WMAP. We estimate thatthe LFI calibration uncertainty is now at the level of 0.20\% for the 70GHz map, 0.26\% for the 44 GHz map, and 0.35\% for the 30 GHz map. Weprovide a detailed description of the impact of all the changesimplemented in the calibration since the previous data release.

AB - We present a description of the pipeline used to calibrate the Planck Low Frequency Instrument (LFI) timelines into thermodynamic temperaturesfor the Planck 2015 data release, covering four years of uninterruptedoperations. As in the 2013 data release, our calibrator is provided bythe spin-synchronous modulation of the cosmic microwave backgrounddipole, but we now use the orbital component, rather than adopting theWilkinson Microwave Anisotropy Probe (WMAP) solar dipole. This allowsour 2015 LFI analysis to provide an independent Solar dipole estimate,which is in excellent agreement with that of HFI and within \$1{\textbackslash}sigma\$(0.3\% in amplitude) of the WMAP value. This 0.3\% shift in thepeak-to-peak dipole temperature from WMAP and a global overhaul of theiterative calibration code increases the overall level of the LFI mapsby 0.45\% (30 GHz), 0.64\% (44 GHz), and 0.82\% (70 GHz) in temperaturewith respect to the 2013 Planck data release, thus reducing thediscrepancy with the power spectrum measured by WMAP. We estimate thatthe LFI calibration uncertainty is now at the level of 0.20\% for the 70GHz map, 0.26\% for the 44 GHz map, and 0.35\% for the 30 GHz map. Weprovide a detailed description of the impact of all the changesimplemented in the calibration since the previous data release.

KW - Astrophysics - Instrumentation and Methods for Astrophysics

KW - Astrophysics - Cosmology and Nongalactic Astrophysics

U2 - 10.1051/0004-6361/201526632

DO - 10.1051/0004-6361/201526632

M3 - Article

SN - 0004-6361

VL - 594

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

ER -

Planck 2015 results. V. LFI calibration

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