Searching for Non-Gaussian Signals in the BOOMERANG 2003 CMB Maps | Zendy

G. De Troia | Zendy; P. A. R. Ade | Zendy; J. J. Bock | Zendy; J. R. Bond | Zendy; J. Borrill | Zendy; A. Boscaleri | Zendy; P. Cabella | Zendy; Carlo Contaldi | Zendy; B. P. Crill | Zendy; P. de Bernardis | Zendy; G. de Gasperis | Zendy; A. de OliveiraCosta | Zendy; Giuseppe Di Stefano | Zendy; Pedro G. Ferreira | Zendy; E. Hivon | Zendy; A. H. Jaffe | Zendy; T. S. Kisner | Zendy; M. Kunz | Zendy; W. C. Jones | Zendy; A. E. Lange | Zendy; M. Liguori | Zendy; S. Masi | Zendy; S. Matarrese | Zendy; P. Mauskopf | Zendy; C. J. MacTavish | Zendy; A. Melchiorri | Zendy; T. E. Montroy | Zendy; P. Natoli | Zendy; C. B. Netterfield | Zendy; E. Pascale | Zendy; F. Piacentini | Zendy; D. Pogosyan | Zendy; G. Polenta | Zendy; S. Prunet | Zendy; S. Ricciardi | Zendy; G. Romeo | Zendy; J. E. Ruhl | Zendy; P. Santini | Zendy; Max Tegmark | Zendy; M. Veneziani | Zendy; N. Vittorio | Zendy

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Searching for Non-Gaussian Signals in the BOOMERANG 2003 CMB Maps

Author(s) -

G. De Troia,

P. A. R. Ade,

J. J. Bock,

J. R. Bond,

J. Borrill,

A. Boscaleri,

P. Cabella,

Carlo Contaldi,

B. P. Crill,

P. de Bernardis,

G. de Gasperis,

A. de OliveiraCosta,

Giuseppe Di Stefano,

Pedro G. Ferreira,

E. Hivon,

A. H. Jaffe,

T. S. Kisner,

M. Kunz,

W. C. Jones,

A. E. Lange,

M. Liguori,

S. Masi,

S. Matarrese,

P. Mauskopf,

C. J. MacTavish,

A. Melchiorri,

T. E. Montroy,

P. Natoli,

C. B. Netterfield,

E. Pascale,

F. Piacentini,

D. Pogosyan,

G. Polenta,

S. Prunet,

S. Ricciardi,

G. Romeo,

J. E. Ruhl,

P. Santini,

Max Tegmark,

M. Veneziani,

N. Vittorio

Publication year - 2007

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/524402

Subject(s) - physics , cosmic microwave background , gaussian , estimator , minkowski space , non gaussianity , amplitude , parameter space , cosmic background radiation , astrophysics , statistical physics , statistics , optics , mathematical physics , quantum mechanics , anisotropy , mathematics

We analyze the BOOMERANG 2003 (B03) 145 GHz temperature map to constrain the amplitude of a non-Gaussian, primordial contribution to CMB fluctuations. We perform a pixel-space analysis restricted to a portion of the map chosen in view of high-sensitivity, very low foreground contamination and tight control of systematic effects. We set up an estimator based on the three Minkowski functionals which relies on high-quality simulated data, including non-Gaussian CMB maps. We find good agreement with the Gaussian hypothesis and derive the first limits based on BOOMERANG data for the nonlinear coupling parameter fNL as -300

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