Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4501
AuthorsDe Troia, G.* 
Ade, P. A. R.* 
Bock, J. J.* 
Bond, J. R.* 
Borrill, J.* 
Boscaleri, A.* 
Cabella, P.* 
Contaldi, C. R.* 
Crill, B. P.* 
De Bernardis, P.* 
De Gasperis, G.* 
De Oliveira-Costa, A.* 
Di Stefano, G.* 
Ferreira, P. G.* 
Hivon, E.* 
Jaffe, A.* 
Kisner, T.* 
Kunz, M.* 
Jones, W. C.* 
Lange, A. E.* 
Masi, S.* 
Mauskopf, P. D.* 
MacTavish, C.* 
Melchiorri, A.* 
Montroy, T.* 
Natoli, P.* 
Netterfield, C. B.* 
Pascale, E.* 
Piacentini, F.* 
Pogosyan, D.* 
Polenta, G.* 
Prunet, S.* 
Ricciardi, S.* 
Romeo, G.* 
Ruhl, J. E.* 
Santini, P.* 
Tegmark, M.* 
Veneziani, M.* 
Vittorio, N.* 
TitleSearching for non-Gaussian signals in the BOOMERanG 2003 CMB map: Preliminary results
Issue Date1-Dec-2007
Series/Report no.3-4/51(2007)
DOI10.1016/j.newar.2006.11.064
URIhttp://hdl.handle.net/2122/4501
Keywordscosmology
cosmic microwave background
Boomerang
Subject Classification05. General::05.07. Space and Planetary sciences::05.07.99. General or miscellaneous 
AbstractWe 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 non linear coupling parameter fNL as −300 < fNL < 650 at 68% CL and −800 < fNL < 1050 at 95% CL.
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