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

@article{Ade2014Planck2R,
  title={Planck 2015 results - XVII. Constraints on primordial non-Gaussianity},
  author={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. Benoit and A. Benoit-L{\'e}vy 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. D'esert 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'alez-Nuevo and K. M. G'orski 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. Hern'andez-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'opez-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. Mart'inez-Gonz'alez 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-Desch{\^e}nes 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. Rubino-Mart'in 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},
  year={2014},
  volume={571},
  pages={1-66}
}
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… Expand
Planck 2015 results. XVII. Constraints on primordial non-Gaussianity
The Planck nominal mission cosmic microwave background (CMB) maps yield unprecedented constraints on primordial non-Gaussianity (NG). Using three optimal bispectrum estimators, separableExpand
Planck 2018 results. IX. Constraints on primordial non-Gaussianity
We analyse the Planck full-mission cosmic microwave background (CMB) temperature and E-mode polarization maps to obtain constraints on primordial non-Gaussianity (NG). We compare estimates obtainedExpand
Planck 2013 results - XXIII. Isotropy and statistics of the CMB
We test the statistical isotropy and Gaussianity of the cosmic microwave background (CMB) anisotropies using observations made by the Planck satellite. Our results are based mainly on the full PlanckExpand
Planck 2015 results: XIX. Constraints on primordial magnetic fields
We predict and investigate four types of imprint of a stochastic background of primordial magnetic fields (PMFs) on the cosmic microwave background (CMB) anisotropies: the impact of PMFs on the CMBExpand
Model-independent analyses of non-Gaussianity in Planck CMB maps using Minkowski functionals
Despite the wealth of Planck results, there are difficulties in disentangling the primordial non-Gaussianity of the Cosmic Microwave Background (CMB) from the secondary and the foregroundExpand
Constraining the WMAP9 bispectrum and trispectrum with needlets
We develop a needlet approach to estimate the amplitude of general (including non-separable) bispectra and trispectra in the cosmic microwave background, and apply this to the WMAP 9-year data. WeExpand
Principal components of CMB non-Gaussianity
The skew-spectrum statistic introduced by Munshi & Heavens (2010) has recently been used in studies of non-Gaussianity from diverse cosmological data sets including the detection of primary andExpand
The bispectra of galactic CMB foregrounds and their impact on primordial non-Gaussianity estimation
We use the binned bispectrum estimator to determine the bispectra of the dust, free-free, synchrotron, and AME galactic foregrounds using maps produced by the Commander component separation methodExpand
Probing primordial non-Gaussianity via iSW measurements with SKA continuum surveys
The Planck CMB experiment has delivered the best constraints so far on primordial non-Gaussianity, ruling out early-Universe models of inflation that generate large non-Gaussianity. Although smallExpand
Planck 2013 results. XII. Diffuse component separation
Planck has produced detailed all-sky observations over nine frequency bands between 30 and 857 GHz. These observations allow robust reconstruction of the primordial cosmic microwave background (CMB)Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 444 REFERENCES
Limits on Primordial Non-Gaussianity from Minkowski Functionals of the WMAP Temperature Anisotropies
We present an analysis of the Minkowski Functionals (MFs) describing the Wilkinson Microwave Anisotropy Probe (WMAP) 3-yr temperature maps to place limits on possible levels of primordialExpand
Non-Gaussianity and the CMB bispectrum: Confusion between primordial and lensing-Rees-Sciama contribution?
We revisit the predictions for the expected cosmic microwave background bispectrum signal from the cross-correlation of the primary-lensing-Rees-Sciama signal; we point out that it can be aExpand
Planck 2013 results - XXIII. Isotropy and statistics of the CMB
We test the statistical isotropy and Gaussianity of the cosmic microwave background (CMB) anisotropies using observations made by the Planck satellite. Our results are based mainly on the full PlanckExpand
Large scale structure, the cosmic microwave background, and primordial non-gaussianity
Since cosmic-microwave-background (CMB) and large-scale-structure (LSS) data will shortly improve dramatically with the Microwave Anisotropy Probe (MAP) and Planck Surveyor, and the Anglo-AustralianExpand
Constraints on primordial non-Gaussianity from a needlet analysis of the WMAP-5 data
We look for a non-Gaussian signal in the Wilkinson Microwave Anisotropy Probe (WMAP) 5-year temperature anisotropy maps by performing a needlet-based data analysis. We use the foreground-reduced mapsExpand
Planck 2015 results: XIX. Constraints on primordial magnetic fields
We predict and investigate four types of imprint of a stochastic background of primordial magnetic fields (PMFs) on the cosmic microwave background (CMB) anisotropies: the impact of PMFs on the CMBExpand
Hunting for primordial non-Gaussianity in the cosmic microwave background
Since the first limit on the (local) primordial non-Gaussianity parameter, fNL, was obtained from the Cosmic Background Explorer (COBE) data in 2002, observations of the cosmic microwave backgroundExpand
Constraining the WMAP9 bispectrum and trispectrum with needlets
We develop a needlet approach to estimate the amplitude of general (including non-separable) bispectra and trispectra in the cosmic microwave background, and apply this to the WMAP 9-year data. WeExpand
Fast Estimator of Primordial Non-Gaussianity from Temperature and Polarization Anisotropies in the Cosmic Microwave Background
Measurements of primordial non-Gaussianity (fNL) open a new window onto the physics of inflation. We describe a fast cubic (bispectrum) estimator of fNL, using a combined analysis of temperature andExpand
Primordial Non-Gaussianity and Analytical Formula for Minkowski Functionals of the Cosmic Microwave Background and Large-Scale Structure
We derive analytical formulae for the Minkowski functionals of the cosmic microwave background (CMB) and large-scale structure (LSS) from primordial non-Gaussianity. These formulae enable us toExpand
...
1
2
3
4
5
...