Planck 2015 results: XV. Gravitational lensing

P. A R Ade; N. Aghanim; M. Arnaud; M. Ashdown; J. Aumont; C. Baccigalupi; A. J. Banday; R. B. Barreiro; J. G. Bartlett; N. Bartolo; Suman Basak; E. Battaner; K. Benabed; A. Benoît; A. Benoit-Lévy; J. P. Bernard; M. Bersanelli; P. Bielewicz; J. J. Bock; A. Bonaldi; L. Bonavera; J. R. Bond; J. Borrill; F. R. Bouchet; F. Boulanger; M. Bucher; C. Burigana; R. C. Butler; E. Calabrese; J. F. Cardoso; A. Catalano; A. Challinor; A. Chamballu; H. C. Chiang; P. R. Christensen; S. Church; D. L. Clements; S. Colombi; L. P L Colombo; C. Combet; F. Couchot; A. Coulais; B. P. Crill; A. Curto; F. Cuttaia; L. Danese; R. D. Davies; R. J. Davis; P. De Bernardis; A. De Rosa; Giulia De Zotti; J. Delabrouille; F. X. Désert; J. M. Diego; H. Dole; S. Donzelli; O. Doré; M. Douspis; A. Ducout; J. Dunkley; X. Dupac; G. Efstathiou; F. Elsner; T. A. Enßlin; H. K. Eriksen; J. Fergusson; F. Finelli; O. Forni; M. Frailis; A. A. Fraisse; E. Franceschi; A. Frejsel; S. Galeotta; S. Galli; K. Ganga; M. Giard; Y. Giraud-Héraud; E. Gjerløw; J. González-Nuevo; K. M. Górski; S. Gratton; A. Gregorio; A. Gruppuso; J. E. Gudmundsson; F. K. Hansen; D. Hanson; D. L. Harrison; S. Henrot-Versillé; C. Hernández-Monteagudo; D. Herranz; S. R. Hildebrandt; E. Hivon; M. Hobson; W. A. Holmes; Allan Hornstrup; W. Hovest; K. M. Huffenberger; G. Hurier; A. H. Jaffe; T. R. Jaffe; W. C. Jones; M. Juvela; E. Keihänen; R. Keskitalo; T. S. Kisner; R. Kneissl; J. Knoche; M. Kunz; H. Kurki-Suonio; G. Lagache; A. Lähteenmäki; J. M. Lamarre; A. Lasenby; M. Lattanzi; C. R. Lawrence; R. Leonardi; J. Lesgourgues; F. Levrier; Annette May Lewis; M. Liguori; P. B. Lilje; Michael Linden-Vørnle; M. López-Caniego; P. M. Lubin; J. F. Maciás-Pérez; G. Maggio; D. Maino; N. Mandolesi; A. Mangilli; M. Maris; P. G. Martin; E. Martínez-González; S. Masi; S. Matarrese; P. Mcgehee; P. R. Meinhold; A. Melchiorri; L. Mendes; A. Mennella; M. Migliaccio; Susanta Mitra; M. A. Miville-Deschênes; A. Moneti; L. Montier; G. Morgante; D. Mortlock; A. Moss; D. Munshi; J. A. Murphy; P. Naselsky; F. Nati; P. Natoli; C. B. Netterfield; Hans Ulrik Nørgaard-Nielsen; F. Noviello; D. Novikov; I. Novikov; Carol Anne Oxborrow; F. Paci; L. Pagano; Fernand Pajot; D. Paoletti; F. Pasian; G. Patanchon; O. Perdereau; L. Perotto; F. Perrotta; V. Pettorino; F. Piacentini; M. Piat; E. Pierpaoli; D. Pietrobon; S. Plaszczynski; E. Pointecouteau; G. Polenta; L. Popa; G. W. Pratt; G. Prézeau; S. Prunet; J. L. Puget; J. P. Rachen; W. T. Reach; R. Rebolo; M. Reinecke; M. Remazeilles; C. Renault; A. Renzi; I. Ristorcelli; G. Rocha; C. Rosset; M. Rossetti; G. Roudier; M. Rowan-Robinson; J. A. Rubinõ-Martín; B. Rusholme; M. Sandri; D. Santos; M. Savelainen; G. Savini; D. Scott; M. D. Seiffert; E. P S Shellard; L. D. Spencer; V. Stolyarov; R. Stompor; R. Sudiwala; R. Sunyaev; D. Sutton; A. S. Suur-Uski; J. F. Sygnet; J. A. Tauber; L. Terenzi; L. Toffolatti; M. Tomasi; M. Tristram; M. Tucci; J. Tuovinen; L. Valenziano; J. Valiviita; B. Van Tent; P. Vielva; F. Villa; L. A. Wade; B. D. Wandelt; I. K. Wehus; M. White; D. Yvon; A. Zacchei; A. Zonca

doi:10.1051/0004-6361/201525941

Planck 2015 results: XV. Gravitational lensing

P. A R Ade, N. Aghanim, M. Arnaud, M. Ashdown, J. Aumont, C. Baccigalupi, A. J. Banday, R. B. Barreiro, J. G. Bartlett, N. Bartolo, Suman Basak, E. Battaner, K. Benabed, A. Benoît, A. Benoit-Lévy, J. P. Bernard, M. Bersanelli, P. Bielewicz, J. J. Bock, A. BonaldiL. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, F. Boulanger, M. Bucher, C. Burigana, R. C. Butler, E. Calabrese, J. F. Cardoso, A. Catalano, A. Challinor, A. Chamballu, H. C. Chiang, P. R. Christensen, S. Church, D. L. Clements, S. Colombi, L. P L Colombo, C. Combet, F. Couchot, A. Coulais, B. P. Crill, A. Curto, F. Cuttaia, L. Danese, R. D. Davies, R. J. Davis, P. De Bernardis, A. De Rosa, Giulia De Zotti, J. Delabrouille, F. X. Désert, J. M. Diego, H. Dole, S. Donzelli, O. Doré, M. Douspis, A. Ducout, J. Dunkley, X. Dupac, G. Efstathiou, F. Elsner, T. A. Enßlin, H. K. Eriksen, J. Fergusson, F. Finelli, O. Forni, M. Frailis, A. A. Fraisse, E. Franceschi, A. Frejsel, S. Galeotta, S. Galli, K. Ganga, M. Giard, Y. Giraud-Héraud, E. Gjerløw, J. González-Nuevo, K. M. Górski, S. Gratton, A. Gregorio, A. Gruppuso, J. E. Gudmundsson, F. K. Hansen, D. Hanson, D. L. Harrison, S. Henrot-Versillé, C. Hernández-Monteagudo, D. Herranz, S. R. Hildebrandt, E. Hivon, M. Hobson, W. A. Holmes, Allan Hornstrup, W. Hovest, K. M. Huffenberger, G. Hurier, A. H. Jaffe, T. R. Jaffe, W. C. Jones, M. Juvela, E. Keihänen, R. Keskitalo, T. S. Kisner, R. Kneissl, J. Knoche, M. Kunz, H. Kurki-Suonio, G. Lagache, A. Lähteenmäki, J. M. Lamarre, A. Lasenby, M. Lattanzi, C. R. Lawrence, R. Leonardi, J. Lesgourgues, F. Levrier, Annette May Lewis, M. Liguori, P. B. Lilje, Michael Linden-Vørnle, M. López-Caniego, P. M. Lubin, J. F. Maciás-Pérez, G. Maggio, D. Maino, N. Mandolesi, A. Mangilli, M. Maris, P. G. Martin, E. Martínez-González, S. Masi, S. Matarrese, P. Mcgehee, P. R. Meinhold, A. Melchiorri, L. Mendes, A. Mennella, M. Migliaccio, Susanta Mitra, M. A. Miville-Deschênes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, A. Moss, D. Munshi, J. A. Murphy, P. Naselsky, F. Nati, P. Natoli, C. B. Netterfield, Hans Ulrik Nørgaard-Nielsen, F. Noviello, D. Novikov, I. Novikov, Carol Anne Oxborrow, F. Paci, L. Pagano, Fernand Pajot, D. Paoletti, F. Pasian, G. Patanchon, O. Perdereau, L. Perotto, F. Perrotta, V. Pettorino, F. Piacentini, M. Piat, E. Pierpaoli, D. Pietrobon, S. Plaszczynski, E. Pointecouteau, G. Polenta, L. Popa, G. W. Pratt, G. Prézeau, S. Prunet, J. L. Puget, J. P. Rachen, W. T. Reach, R. Rebolo, M. Reinecke, M. Remazeilles, C. Renault, A. Renzi, I. Ristorcelli, G. Rocha, C. Rosset, M. Rossetti, G. Roudier, M. Rowan-Robinson, J. A. Rubinõ-Martín, B. Rusholme, M. Sandri, D. Santos, M. Savelainen, G. Savini, D. Scott, M. D. Seiffert, E. P S Shellard, L. D. Spencer, V. Stolyarov, R. Stompor, R. Sudiwala, R. Sunyaev, D. Sutton, A. S. Suur-Uski, J. F. Sygnet, J. A. Tauber, L. Terenzi, L. Toffolatti, M. Tomasi, M. Tristram, M. Tucci, J. Tuovinen, L. Valenziano, J. Valiviita, B. Van Tent, P. Vielva, F. Villa, L. A. Wade, B. D. Wandelt, I. K. Wehus, M. White, D. Yvon, A. Zacchei, A. Zonca

University of Copenhagen

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

We present the most significant measurement of the cosmic microwave background (CMB) lensing potential to date (at a level of 40σ), using temperature and polarization data from the Planck 2015 full-mission release. Using a polarization-only estimator, we detect lensing at a significance of 5σ. We cross-check the accuracy of our measurement using the wide frequency coverage and complementarity of the temperature and polarization measurements. Public products based on this measurement include an estimate of the lensing potential over approximately 70% of the sky, an estimate of the lensing potential power spectrum in bandpowers for the multipole range 40≤L≤400, and an associated likelihood for cosmological parameter constraints. We find good agreement between our measurement of the lensing potential power spectrum and that found in the ΛCDM model that best fits the Planck temperature and polarization power spectra. Using the lensing likelihood alone we obtain a percent-level measurement of the parameter combination σ8ω0.25m = 0:591 ± 0:021. We combine our determination of the lensing potential with the E-mode polarization, also measured by Planck, to generate an estimate of the lensing B-mode. We show that this lensing B-mode estimate is correlated with the B-modes observed directly by Planck at the expected level and with a statistical significance of 10σ, confirming Planck's sensitivity to this known sky signal. We also correlate our lensing potential estimate with the large-scale temperature anisotropies, detecting a cross-correlation at the 3σ level, as expected because of dark energy in the concordance ΛCDM model.

Original language	English
Article number	A15
Journal	Astronomy and Astrophysics
Volume	594
Number of pages	28
ISSN	0004-6361
DOIs	https://doi.org/10.1051/0004-6361/201525941
Publication status	Published - 2016

Keywords

Cosmic background radiation
Cosmological parameters
Cosmology: observations
Gravitational lensing: weak
Large-scale structure of Universe

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10.1051/0004-6361/201525941

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Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Bartolo, N., Basak, S., Battaner, E., Benabed, K., Benoît, A., Benoit-Lévy, A., Bernard, J. P., Bersanelli, M., Bielewicz, P., Bock, J. J., ... Zonca, A. (2016). Planck 2015 results: XV. Gravitational lensing. Astronomy and Astrophysics, 594, Article A15. https://doi.org/10.1051/0004-6361/201525941

@article{39b066aeeb3444fa9bbe6cead8e7593b,

title = "Planck 2015 results: XV. Gravitational lensing",

abstract = "We present the most significant measurement of the cosmic microwave background (CMB) lensing potential to date (at a level of 40σ), using temperature and polarization data from the Planck 2015 full-mission release. Using a polarization-only estimator, we detect lensing at a significance of 5σ. We cross-check the accuracy of our measurement using the wide frequency coverage and complementarity of the temperature and polarization measurements. Public products based on this measurement include an estimate of the lensing potential over approximately 70% of the sky, an estimate of the lensing potential power spectrum in bandpowers for the multipole range 40≤L≤400, and an associated likelihood for cosmological parameter constraints. We find good agreement between our measurement of the lensing potential power spectrum and that found in the ΛCDM model that best fits the Planck temperature and polarization power spectra. Using the lensing likelihood alone we obtain a percent-level measurement of the parameter combination σ8ω0.25m = 0:591 ± 0:021. We combine our determination of the lensing potential with the E-mode polarization, also measured by Planck, to generate an estimate of the lensing B-mode. We show that this lensing B-mode estimate is correlated with the B-modes observed directly by Planck at the expected level and with a statistical significance of 10σ, confirming Planck's sensitivity to this known sky signal. We also correlate our lensing potential estimate with the large-scale temperature anisotropies, detecting a cross-correlation at the 3σ level, as expected because of dark energy in the concordance ΛCDM model.",

keywords = "Cosmic background radiation, Cosmological parameters, Cosmology: observations, Gravitational lensing: weak, Large-scale structure of Universe",

author = "Ade, {P. A R} and N. Aghanim and M. Arnaud and M. Ashdown and J. Aumont and C. Baccigalupi and Banday, {A. J.} and Barreiro, {R. B.} and Bartlett, {J. G.} and N. Bartolo and Suman Basak and E. Battaner and K. Benabed and A. Beno{\^i}t and A. Benoit-L{\'e}vy and Bernard, {J. P.} 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 F. Boulanger and M. Bucher and C. Burigana and Butler, {R. C.} and E. Calabrese and Cardoso, {J. F.} and A. Catalano and A. Challinor and A. Chamballu and Chiang, {H. C.} and Christensen, {P. R.} and S. Church and Clements, {D. L.} and S. Colombi and Colombo, {L. P L} and C. Combet and F. Couchot and A. Coulais 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}, Giulia and J. Delabrouille and D{\'e}sert, {F. X.} and Diego, {J. M.} and H. Dole and S. Donzelli and O. Dor{\'e} and M. Douspis and A. Ducout and J. Dunkley and X. Dupac and G. Efstathiou and F. Elsner and En{\ss}lin, {T. A.} and Eriksen, {H. K.} and J. Fergusson and F. Finelli and O. Forni and M. Frailis and Fraisse, {A. A.} and E. Franceschi and A. Frejsel and S. Galeotta and S. Galli and K. Ganga and M. Giard and Y. Giraud-H{\'e}raud and E. Gjerl{\o}w and J. Gonz{\'a}lez-Nuevo and G{\'o}rski, {K. M.} and S. Gratton and A. Gregorio and A. Gruppuso and Gudmundsson, {J. E.} and Hansen, {F. K.} and D. Hanson and Harrison, {D. L.} and S. Henrot-Versill{\'e} and C. Hern{\'a}ndez-Monteagudo and D. Herranz and Hildebrandt, {S. R.} and E. Hivon and M. Hobson and Holmes, {W. A.} and Allan Hornstrup and W. Hovest and Huffenberger, {K. M.} and G. Hurier and Jaffe, {A. H.} and Jaffe, {T. R.} and Jones, {W. C.} and M. Juvela and E. Keih{\"a}nen and R. Keskitalo and Kisner, {T. S.} and R. Kneissl and J. Knoche and M. Kunz and H. Kurki-Suonio and G. Lagache and A. L{\"a}hteenm{\"a}ki and Lamarre, {J. M.} and A. Lasenby and M. Lattanzi and Lawrence, {C. R.} and R. Leonardi and J. Lesgourgues and F. Levrier and Lewis, {Annette May} and M. Liguori and Lilje, {P. B.} and Michael Linden-V{\o}rnle and M. L{\'o}pez-Caniego and Lubin, {P. M.} and Maci{\'a}s-P{\'e}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{\'i}nez-Gonz{\'a}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 Susanta Mitra and Miville-Desch{\^e}nes, {M. A.} and A. Moneti 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{\o}rgaard-Nielsen, {Hans Ulrik} and F. Noviello and D. Novikov and I. Novikov and Oxborrow, {Carol Anne} and F. Paci and L. Pagano and Fernand Pajot and D. Paoletti and F. Pasian and G. Patanchon and O. Perdereau and L. Perotto and F. Perrotta and V. Pettorino and F. Piacentini and M. Piat and E. Pierpaoli and D. Pietrobon and S. Plaszczynski and E. Pointecouteau and G. Polenta and L. Popa and Pratt, {G. W.} and G. Pr{\'e}zeau and S. Prunet and Puget, {J. L.} and Rachen, {J. P.} and Reach, {W. T.} and R. Rebolo and M. Reinecke and M. Remazeilles and C. Renault and A. Renzi and I. Ristorcelli and G. Rocha and C. Rosset and M. Rossetti and G. Roudier and M. Rowan-Robinson and Rubin{\~o}-Mart{\'i}n, {J. A.} and B. Rusholme and M. Sandri and D. Santos and M. Savelainen and G. Savini and D. Scott and Seiffert, {M. D.} and Shellard, {E. P S} and Spencer, {L. D.} and V. Stolyarov and R. Stompor and R. Sudiwala and R. Sunyaev and D. Sutton and Suur-Uski, {A. S.} and Sygnet, {J. F.} and Tauber, {J. A.} and L. Terenzi and L. Toffolatti and M. Tomasi and M. Tristram and M. Tucci and J. Tuovinen and L. Valenziano and J. Valiviita and {Van Tent}, B. and P. Vielva and F. Villa and Wade, {L. A.} and Wandelt, {B. D.} and Wehus, {I. K.} and M. White and D. Yvon and A. Zacchei and A. Zonca",

year = "2016",

doi = "10.1051/0004-6361/201525941",

language = "English",

volume = "594",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

Ade, PAR, Aghanim, N, Arnaud, M, Ashdown, M, Aumont, J, Baccigalupi, C, Banday, AJ, Barreiro, RB, Bartlett, JG, Bartolo, N, Basak, S, Battaner, E, Benabed, K, Benoît, A, Benoit-Lévy, A, Bernard, JP, Bersanelli, M, Bielewicz, P, Bock, JJ, Bonaldi, A, Bonavera, L, Bond, JR, Borrill, J, Bouchet, FR, Boulanger, F, Bucher, M, Burigana, C, Butler, RC, Calabrese, E, Cardoso, JF, Catalano, A, Challinor, A, Chamballu, A, Chiang, HC, Christensen, PR, Church, S, Clements, DL, Colombi, S, Colombo, LPL, Combet, C, Couchot, F, Coulais, A, Crill, BP, Curto, A, Cuttaia, F, Danese, L, Davies, RD, Davis, RJ, De Bernardis, P, De Rosa, A, De Zotti, G, Delabrouille, J, Désert, FX, Diego, JM, Dole, H, Donzelli, S, Doré, O, Douspis, M, Ducout, A, Dunkley, J, Dupac, X, Efstathiou, G, Elsner, F, Enßlin, TA, Eriksen, HK, Fergusson, J, Finelli, F, Forni, O, Frailis, M, Fraisse, AA, Franceschi, E, Frejsel, A, Galeotta, S, Galli, S, Ganga, K, Giard, M, Giraud-Héraud, Y, Gjerløw, E, González-Nuevo, J, Górski, KM, Gratton, S, Gregorio, A, Gruppuso, A, Gudmundsson, JE, Hansen, FK, Hanson, D, Harrison, DL, Henrot-Versillé, S, Hernández-Monteagudo, C, Herranz, D, Hildebrandt, SR, Hivon, E, Hobson, M, Holmes, WA, Hornstrup, A, Hovest, W, Huffenberger, KM, Hurier, G, Jaffe, AH, Jaffe, TR, Jones, WC, Juvela, M, Keihänen, E, Keskitalo, R, Kisner, TS, Kneissl, R, Knoche, J, Kunz, M, Kurki-Suonio, H, Lagache, G, Lähteenmäki, A, Lamarre, JM, Lasenby, A, Lattanzi, M, Lawrence, CR, Leonardi, R, Lesgourgues, J, Levrier, F, Lewis, AM, Liguori, M, Lilje, PB, Linden-Vørnle, M, López-Caniego, M, Lubin, PM, Maciás-Pérez, JF, Maggio, G, Maino, D, Mandolesi, N, Mangilli, A, Maris, M, Martin, PG, Martínez-González, E, Masi, S, Matarrese, S, Mcgehee, P, Meinhold, PR, Melchiorri, A, Mendes, L, Mennella, A, Migliaccio, M, Mitra, S, Miville-Deschênes, MA, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Moss, A, Munshi, D, Murphy, JA, Naselsky, P, Nati, F, Natoli, P, Netterfield, CB, Nørgaard-Nielsen, HU, Noviello, F, Novikov, D, Novikov, I, Oxborrow, CA, Paci, F, Pagano, L, Pajot, F, Paoletti, D, Pasian, F, Patanchon, G, Perdereau, O, Perotto, L, Perrotta, F, Pettorino, V, Piacentini, F, Piat, M, Pierpaoli, E, Pietrobon, D, Plaszczynski, S, Pointecouteau, E, Polenta, G, Popa, L, Pratt, GW, Prézeau, G, Prunet, S, Puget, JL, Rachen, JP, Reach, WT, Rebolo, R, Reinecke, M, Remazeilles, M, Renault, C, Renzi, A, Ristorcelli, I, Rocha, G, Rosset, C, Rossetti, M, Roudier, G, Rowan-Robinson, M, Rubinõ-Martín, JA, Rusholme, B, Sandri, M, Santos, D, Savelainen, M, Savini, G, Scott, D, Seiffert, MD, Shellard, EPS, Spencer, LD, Stolyarov, V, Stompor, R, Sudiwala, R, Sunyaev, R, Sutton, D, Suur-Uski, AS, Sygnet, JF, Tauber, JA, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Tucci, M, Tuovinen, J, Valenziano, L, Valiviita, J, Van Tent, B, Vielva, P, Villa, F, Wade, LA, Wandelt, BD, Wehus, IK, White, M, Yvon, D, Zacchei, A & Zonca, A 2016, 'Planck 2015 results: XV. Gravitational lensing', Astronomy and Astrophysics, vol. 594, A15. https://doi.org/10.1051/0004-6361/201525941

TY - JOUR

T1 - Planck 2015 results: XV. Gravitational lensing

AU - Ade, P. A R

AU - Aghanim, N.

AU - Arnaud, M.

AU - Ashdown, M.

AU - Aumont, J.

AU - Baccigalupi, C.

AU - Banday, A. J.

AU - Barreiro, R. B.

AU - Bartlett, J. G.

AU - Bartolo, N.

AU - Basak, Suman

AU - Battaner, E.

AU - Benabed, K.

AU - Benoît, A.

AU - Benoit-Lévy, 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 - Boulanger, F.

AU - Bucher, M.

AU - Burigana, C.

AU - Butler, R. C.

AU - Calabrese, E.

AU - Cardoso, J. F.

AU - Catalano, A.

AU - Challinor, A.

AU - Chamballu, A.

AU - Chiang, H. C.

AU - Christensen, P. R.

AU - Church, S.

AU - Clements, D. L.

AU - Colombi, S.

AU - Colombo, L. P L

AU - Combet, C.

AU - Couchot, F.

AU - Coulais, A.

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, Giulia

AU - Delabrouille, J.

AU - Désert, F. X.

AU - Diego, J. M.

AU - Dole, H.

AU - Donzelli, S.

AU - Doré, O.

AU - Douspis, M.

AU - Ducout, A.

AU - Dunkley, J.

AU - Dupac, X.

AU - Efstathiou, G.

AU - Elsner, F.

AU - Enßlin, T. A.

AU - Eriksen, H. K.

AU - Fergusson, J.

AU - Finelli, F.

AU - Forni, O.

AU - Frailis, M.

AU - Fraisse, A. A.

AU - Franceschi, E.

AU - Frejsel, A.

AU - Galeotta, S.

AU - Galli, S.

AU - Ganga, K.

AU - Giard, M.

AU - Giraud-Héraud, Y.

AU - Gjerløw, E.

AU - González-Nuevo, J.

AU - Górski, K. M.

AU - Gratton, S.

AU - Gregorio, A.

AU - Gruppuso, A.

AU - Gudmundsson, J. E.

AU - Hansen, F. K.

AU - Hanson, D.

AU - Harrison, D. L.

AU - Henrot-Versillé, S.

AU - Hernández-Monteagudo, C.

AU - Herranz, D.

AU - Hildebrandt, S. R.

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PY - 2016

Y1 - 2016

N2 - We present the most significant measurement of the cosmic microwave background (CMB) lensing potential to date (at a level of 40σ), using temperature and polarization data from the Planck 2015 full-mission release. Using a polarization-only estimator, we detect lensing at a significance of 5σ. We cross-check the accuracy of our measurement using the wide frequency coverage and complementarity of the temperature and polarization measurements. Public products based on this measurement include an estimate of the lensing potential over approximately 70% of the sky, an estimate of the lensing potential power spectrum in bandpowers for the multipole range 40≤L≤400, and an associated likelihood for cosmological parameter constraints. We find good agreement between our measurement of the lensing potential power spectrum and that found in the ΛCDM model that best fits the Planck temperature and polarization power spectra. Using the lensing likelihood alone we obtain a percent-level measurement of the parameter combination σ8ω0.25m = 0:591 ± 0:021. We combine our determination of the lensing potential with the E-mode polarization, also measured by Planck, to generate an estimate of the lensing B-mode. We show that this lensing B-mode estimate is correlated with the B-modes observed directly by Planck at the expected level and with a statistical significance of 10σ, confirming Planck's sensitivity to this known sky signal. We also correlate our lensing potential estimate with the large-scale temperature anisotropies, detecting a cross-correlation at the 3σ level, as expected because of dark energy in the concordance ΛCDM model.

AB - We present the most significant measurement of the cosmic microwave background (CMB) lensing potential to date (at a level of 40σ), using temperature and polarization data from the Planck 2015 full-mission release. Using a polarization-only estimator, we detect lensing at a significance of 5σ. We cross-check the accuracy of our measurement using the wide frequency coverage and complementarity of the temperature and polarization measurements. Public products based on this measurement include an estimate of the lensing potential over approximately 70% of the sky, an estimate of the lensing potential power spectrum in bandpowers for the multipole range 40≤L≤400, and an associated likelihood for cosmological parameter constraints. We find good agreement between our measurement of the lensing potential power spectrum and that found in the ΛCDM model that best fits the Planck temperature and polarization power spectra. Using the lensing likelihood alone we obtain a percent-level measurement of the parameter combination σ8ω0.25m = 0:591 ± 0:021. We combine our determination of the lensing potential with the E-mode polarization, also measured by Planck, to generate an estimate of the lensing B-mode. We show that this lensing B-mode estimate is correlated with the B-modes observed directly by Planck at the expected level and with a statistical significance of 10σ, confirming Planck's sensitivity to this known sky signal. We also correlate our lensing potential estimate with the large-scale temperature anisotropies, detecting a cross-correlation at the 3σ level, as expected because of dark energy in the concordance ΛCDM model.

KW - Cosmic background radiation

KW - Cosmological parameters

KW - Cosmology: observations

KW - Gravitational lensing: weak

KW - Large-scale structure of Universe

U2 - 10.1051/0004-6361/201525941

DO - 10.1051/0004-6361/201525941

M3 - Journal article

SN - 0004-6361

VL - 594

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - A15

ER -

Planck 2015 results: XV. Gravitational lensing

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