# Planck 2018 results. VIII. Gravitational lensing.

@article{Aghanim2018Planck2R, title={Planck 2018 results. VIII. Gravitational lensing.}, author={Planck Collaboration N. Aghanim and Y. Akrami and M. Ashdown and J. Aumont and C. Baccigalupi and M. Ballardini and A. Banday and R. B. Barreiro and N. Bartolo and S. Basak and K. Benabed and J. Bernard and M. Bersanelli and P. Bielewicz and J. Bock and J. Bond and J. Borrill and F. Bouchet and F. Boulanger and M. Bucher and C. Burigana and E. Calabrese and J. Cardoso and J. Carron and A. Challinor and H. Chiang and L. Colombo and C. Combet and B. Crill and F. Cuttaia and P. Bernardis and G. Zotti and J. Delabrouille and E. D. Valentino and J. Diego and O. Dor'e and M. Douspis and A. Ducout and X. Dupac and G. Efstathiou and F. Elsner and T. Ensslin and H. Eriksen and Y. Fantaye and R. Fernandez-Cobos and F. Forastieri and M. Frailis and A. Fraisse and E. Franceschi and A. Frolov and S. Galeotta and S. Galli and K. Ganga and R. G{\'e}nova-Santos and M. Gerbino and T. Ghosh and J. Gonz{\'a}lez-Nuevo and K. G{\'o}rski and S. Gratton and A. Gruppuso and J. Gudmundsson and J. Hamann and Will Handley and F. Hansen and D. Herranz and E. Hivon and Z. Huang and A. Jaffe and W. Jones and A. Karakci and E. Keihanen and R. Keskitalo and K. Kiiveri and J. Kim and L. Knox and N. Krachmalnicoff and M. Kunz and H. Kurki-Suonio and G. Lagache and J. Lamarre and A. Lasenby and M. Lattanzi and C. Lawrence and M. L. Jeune and F. Levrier and A. Lewis and M. Liguori and P. Lilje and V. Lindholm and M. L{\'o}pez-Caniego and P. Lubin and Y.-Z. Ma and J. Mac'ias-P'erez and G. Maggio and D. Maino and N. Mandolesi and A. Mangilli and A. Marcos-Caballero and M. Maris and P. Martin and E. Martinez-gonzalez and S. Matarrese and N. Mauri and J. McEwen and A. Melchiorri and A. Mennella and M. Migliaccio and M. Miville-Deschenes and D. Molinari and A. Moneti and L. Montier and G. Morgante and A. Moss and P. Natoli and L. Pagano and D. Paoletti and B. Partridge and G. Patanchon and F. Perrotta and V. Pettorino and F. Piacentini and L. Polastri and G. Polenta and J. Puget and J. Rachen and M. Reinecke and M. Remazeilles and A. Renzi and G. Rocha and C. Rosset and G. Roudier and J. A. Rubi{\~n}o-Mart{\'i}n and B. Ruiz-Granados and L. Salvati and M. Sandri and M. Savelainen and D. Scott and C. Sirignano and R. Sunyaev and A. Suur-Uski and J. Tauber and D. Tavagnacco and M. Tenti and L. Toffolatti and M. Tomasi and T. Trombetti and J. Valiviita and B. Tent and P. Vielva and F. Villa and N. Vittorio and B. Wandelt and I. Wehus and M. White and S. White and A. Zacchei and A. Zonca}, journal={arXiv: Cosmology and Nongalactic Astrophysics}, year={2018} }

We present measurements of the cosmic microwave background (CMB) lensing potential using the final $\textit{Planck}$ 2018 temperature and polarization data. We increase the significance of the detection of lensing in the polarization maps from $5\,\sigma$ to $9\,\sigma$. Combined with temperature, lensing is detected at $40\,\sigma$. We present an extensive set of tests of the robustness of the lensing-potential power spectrum, and construct a minimum-variance estimator likelihood over lensing… CONTINUE READING

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