Planck 2015 results - XVII. Constraints on primordial non-Gaussianity

  title={Planck 2015 results - XVII. Constraints on primordial non-Gaussianity},
  author={P. C. P. Ade and N. Aghanim and C. Armitage-Caplan and M. Arnaud and M. Ashdown and F. Atrio-Barandela and J. Aumont and C. Baccigalupi and A. Banday and R. B. Barreiro and J. Bartlett and N. Bartolo and E. Battaner and K. Benabed and A. Beno{\^i}t and A. Benoit-levy and J. Bernard and M. Bersanelli and P. Bielewicz and J. Bobin and J. Bock and A. Bonaldi and L. Bonavera and J. Bond and J. Borrill and F. Bouchet and M. Bridges and M. Bucher and C. Burigana and R. C. Butler and J. Cardoso and A. Catalano and A. Challinor and A. Chamballu and H. Chiang and L. Chiang and P. Christensen and S. Church and D. Clements and S. Colombi and L. Colombo and F. Couchot and A. Coulais and B. Crill and A. Curto and F. Cuttaia and L. Danese and R. Davies and R. Davis and P. Bernardis and A. Rosa and G. Zotti and J. Delabrouille and J. Delouis and F. Desert and J. Diego 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 T. Ensslin and H. Eriksen and J. Fergusson and F. Finelli and O. Forni and M. Frailis and E. Franceschi and S. Galeotta and K. Ganga and M. Giard and Y. Giraud-H'eraud and J. Gonz{\'a}lez-Nuevo and K. G{\'o}rski and S. Gratton and A. Gregorio and A. Gruppuso and F. Hansen and D. Hanson and D. Harrison and A. Heavens and S. Henrot-Versill'e and C. Hernandez-Monteagudo and D. Herranz and S. Hildebrandt and E. Hivon and M. Hobson and W. Holmes and A. Hornstrup and W. Hovest and K. Huffenberger and A. Jaffe and T. Jaffe and W. Jones and M. Juvela and E. Keihanen and R. Keskitalo and T. Kisner and J. Knoche and L. Knox and M. Kunz and H. Kurki-Suonio and F. Lacasa and G. Lagache and A. Lahteenmaki and J. Lamarre and A. Lasenby and R. Laureijs and C. Lawrence and J. Leahy and R. Leonardi and J. Lesgourgues and A. Lewis and M. Liguori and P. Lilje and M. Linden-Vornle and M. L{\'o}pez-Caniego and P. Lubin and J. Mac'ias-P'erez and B. Maffei and D. Maino and N. Mandolesi and A. Mangilli and D. Marinucci and M. Maris and D. Marshall and P. Martin and E. Martinez-Gonzalez and S. Masi and M. Massardi and S. Matarrese and F. Matthai and P. Mazzotta and P. Meinhold and A. Melchiorri and L. Mendes and A. Mennella and M. Migliaccio and S. Mitra and M. Miville-Deschenes and A. Moneti and L. Montier and G. Morgante and D. Mortlock and A. Moss and D. Munshi and J. A. Murphy and P. Naselsky and P. Natoli and C. Netterfield and H. N{\o}rgaard-Nielsen and F. Noviello and D. Novikov and I. Novikov and S. Osborne and C. A. Oxborrow and F. Paci and L. Pagano and F. Pajot and D. Paoletti and F. Pasian and G. Patanchon and H. Peiris and O. Perdereau and L. Perotto and F. Perrotta and F. Piacentini and M. Piat and E. Pierpaoli and D. Pietrobon and S. Plaszczynski and E. Pointecouteau and G. Polenta and N. Ponthieu and L. Popa and T. Poutanen and G. Pratt and G. Prezeau and S. Prunet and J. Puget and J. Rachen and B. Racine and R. Rebolo and M. Reinecke and M. Remazeilles and C. Renault and A. Renzi and S. Ricciardi and T. Riller and I. Ristorcelli and G. Rocha and C. Rosset and G. Roudier and J. A. Rubi{\~n}o-Mart{\'i}n and B. Rusholme and M. Sandri and D. Santos and G. Savini and D. Scott and M. Seiffert and E. Shellard and K. Smith and L. Spencer and J. Starck and V. Stolyarov and R. Stompor and R. Sudiwala and R. Sunyaev and F. Sureau and P. Sutter and D. Sutton and A. Suur-Uski and J. Sygnet and J. Tauber and D. Tavagnacco 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 B. Tent and J. Varis and P. Vielva and F. Villa and N. Vittorio and L. Wade and B. Wandelt and M. White and S. White and D. Yvon and A. Zacchei and A. Zonca},
  journal={Astronomy and Astrophysics},
  • P. C. P. Ade, N. Aghanim, +236 authors A. Zonca
  • Published 2014
  • Physics
  • Astronomy and Astrophysics
  • The Planck nominal mission cosmic microwave background (CMB) maps yield unprecedented constraints on primordial non-Gaussianity (NG). Using three optimal bispectrum estimators, separable template-fitting (KSW), binned, and modal, we obtain consistent values for the primordial local, equilateral, and orthogonal bispectrum amplitudes, quoting as our final result fNLlocal = 2.7 ± 5.8, fNLequil = -42 ± 75, and fNLorth = -25 ± 39 (68% CL statistical). Non-Gaussianity is detected in the data; using… CONTINUE READING
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