BOOMERanG constraints on primordial non-Gaussianity from analytical Minkowski functionals

P. Natoli; G. De Troia; C. Hikage; E. Komatsu; M. Migliaccio; P. A.R. Ade; J. J. Bock; J. R. Bond; J. Borrill; A. Boscaleri; C. R. Contaldi; B. P. Crill; P. De Bernardis; G. De Gasperis; A. De Oliveira-Costa; G. Di Stefano; E. Hivon; T. S. Kisner; W. C. Jones; A. E. Lange; S. Masi; P. D. Mauskopf; C. J. MacTavish; A. Melchiorri; T. E. Montroy; C. B. Netterfield; E. Pascale; F. Piacentini; G. Polenta; S. Ricciardi; G. Romeo; J. E. Ruhl; M. Tegmark; M. Veneziani; N. Vittorio

doi:10.1111/j.1365-2966.2010.17228.x

BOOMERanG constraints on primordial non-Gaussianity from analytical Minkowski functionals

P. Natoli, G. De Troia, C. Hikage, E. Komatsu, M. Migliaccio, P. A.R. Ade, J. J. Bock, J. R. Bond, J. Borrill, A. Boscaleri, C. R. Contaldi, B. P. Crill, P. De Bernardis, G. De Gasperis, A. De Oliveira-Costa, G. Di Stefano, E. Hivon, T. S. Kisner, W. C. Jones, A. E. LangeS. Masi, P. D. Mauskopf, C. J. MacTavish, A. Melchiorri, T. E. Montroy, C. B. Netterfield, E. Pascale, F. Piacentini, G. Polenta, S. Ricciardi, G. Romeo, J. E. Ruhl, M. Tegmark, M. Veneziani, N. Vittorio

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19 Scopus citations

Abstract

We use Minkowski functionals (MFs) to constrain a primordial non-Gaussian contribution to the cosmic microwave background intensity field as observed in the 150- and 145-GHz BOOMERanG maps from the 1998 and 2003 flights, respectively, performing for the first time a joint analysis of the two data sets. A perturbative expansion of the MF formulae in the limit of a weakly non-Gaussian field yields analytical formulae, derived by Hikage et al., which can be used to constrain the coupling parameter f_NL without the need for non-Gaussian simulations. We find -770 < f_NL < 500 at 95 per cent CL, significantly improving the previous constraints by De Troia et al. on the BOOMERanG 2003 data set. These are the best f_NL limits to date for suborbital probes.

Original language	English (US)
Pages (from-to)	1658-1665
Number of pages	8
Journal	Monthly Notices of the Royal Astronomical Society
Volume	408
Issue number	3
DOIs	https://doi.org/10.1111/j.1365-2966.2010.17228.x
State	Published - Nov 2010
Externally published	Yes

Keywords

Cosmic background radiation
Cosmology: observations
Early Universe
Methods: analytical
Methods: statistical

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1111/j.1365-2966.2010.17228.x

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Natoli, P., De Troia, G., Hikage, C., Komatsu, E., Migliaccio, M., Ade, P. A. R., Bock, J. J., Bond, J. R., Borrill, J., Boscaleri, A., Contaldi, C. R., Crill, B. P., De Bernardis, P., De Gasperis, G., De Oliveira-Costa, A., Di Stefano, G., Hivon, E., Kisner, T. S., Jones, W. C., ... Vittorio, N. (2010). BOOMERanG constraints on primordial non-Gaussianity from analytical Minkowski functionals. Monthly Notices of the Royal Astronomical Society, 408(3), 1658-1665. https://doi.org/10.1111/j.1365-2966.2010.17228.x

Natoli, P, De Troia, G, Hikage, C, Komatsu, E, Migliaccio, M, Ade, PAR, Bock, JJ, Bond, JR, Borrill, J, Boscaleri, A, Contaldi, CR, Crill, BP, De Bernardis, P, De Gasperis, G, De Oliveira-Costa, A, Di Stefano, G, Hivon, E, Kisner, TS, Jones, WC, Lange, AE, Masi, S, Mauskopf, PD, MacTavish, CJ, Melchiorri, A, Montroy, TE, Netterfield, CB, Pascale, E, Piacentini, F, Polenta, G, Ricciardi, S, Romeo, G, Ruhl, JE, Tegmark, M, Veneziani, M & Vittorio, N 2010, 'BOOMERanG constraints on primordial non-Gaussianity from analytical Minkowski functionals', Monthly Notices of the Royal Astronomical Society, vol. 408, no. 3, pp. 1658-1665. https://doi.org/10.1111/j.1365-2966.2010.17228.x

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title = "BOOMERanG constraints on primordial non-Gaussianity from analytical Minkowski functionals",

abstract = "We use Minkowski functionals (MFs) to constrain a primordial non-Gaussian contribution to the cosmic microwave background intensity field as observed in the 150- and 145-GHz BOOMERanG maps from the 1998 and 2003 flights, respectively, performing for the first time a joint analysis of the two data sets. A perturbative expansion of the MF formulae in the limit of a weakly non-Gaussian field yields analytical formulae, derived by Hikage et al., which can be used to constrain the coupling parameter fNL without the need for non-Gaussian simulations. We find -770 < fNL < 500 at 95 per cent CL, significantly improving the previous constraints by De Troia et al. on the BOOMERanG 2003 data set. These are the best fNL limits to date for suborbital probes.",

keywords = "Cosmic background radiation, Cosmology: observations, Early Universe, Methods: analytical, Methods: statistical",

author = "P. Natoli and {De Troia}, G. and C. Hikage and E. Komatsu and M. Migliaccio and Ade, {P. A.R.} and Bock, {J. J.} and Bond, {J. R.} and J. Borrill and A. Boscaleri and Contaldi, {C. R.} and Crill, {B. P.} and {De Bernardis}, P. and {De Gasperis}, G. and {De Oliveira-Costa}, A. and {Di Stefano}, G. and E. Hivon and Kisner, {T. S.} and Jones, {W. C.} and Lange, {A. E.} and S. Masi and Mauskopf, {P. D.} and MacTavish, {C. J.} and A. Melchiorri and Montroy, {T. E.} and Netterfield, {C. B.} and E. Pascale and F. Piacentini and G. Polenta and S. Ricciardi and G. Romeo and Ruhl, {J. E.} and M. Tegmark and M. Veneziani and N. Vittorio",

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doi = "10.1111/j.1365-2966.2010.17228.x",

language = "English (US)",

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T1 - BOOMERanG constraints on primordial non-Gaussianity from analytical Minkowski functionals

AU - Natoli, P.

AU - De Troia, G.

AU - Hikage, C.

AU - Komatsu, E.

AU - Migliaccio, M.

AU - Ade, P. A.R.

AU - Bock, J. J.

AU - Bond, J. R.

AU - Borrill, J.

AU - Boscaleri, A.

AU - Contaldi, C. R.

AU - Crill, B. P.

AU - De Bernardis, P.

AU - De Gasperis, G.

AU - De Oliveira-Costa, A.

AU - Di Stefano, G.

AU - Hivon, E.

AU - Kisner, T. S.

AU - Jones, W. C.

AU - Lange, A. E.

AU - Masi, S.

AU - Mauskopf, P. D.

AU - MacTavish, C. J.

AU - Melchiorri, A.

AU - Montroy, T. E.

AU - Netterfield, C. B.

AU - Pascale, E.

AU - Piacentini, F.

AU - Polenta, G.

AU - Ricciardi, S.

AU - Romeo, G.

AU - Ruhl, J. E.

AU - Tegmark, M.

AU - Veneziani, M.

AU - Vittorio, N.

PY - 2010/11

Y1 - 2010/11

N2 - We use Minkowski functionals (MFs) to constrain a primordial non-Gaussian contribution to the cosmic microwave background intensity field as observed in the 150- and 145-GHz BOOMERanG maps from the 1998 and 2003 flights, respectively, performing for the first time a joint analysis of the two data sets. A perturbative expansion of the MF formulae in the limit of a weakly non-Gaussian field yields analytical formulae, derived by Hikage et al., which can be used to constrain the coupling parameter fNL without the need for non-Gaussian simulations. We find -770 < fNL < 500 at 95 per cent CL, significantly improving the previous constraints by De Troia et al. on the BOOMERanG 2003 data set. These are the best fNL limits to date for suborbital probes.

AB - We use Minkowski functionals (MFs) to constrain a primordial non-Gaussian contribution to the cosmic microwave background intensity field as observed in the 150- and 145-GHz BOOMERanG maps from the 1998 and 2003 flights, respectively, performing for the first time a joint analysis of the two data sets. A perturbative expansion of the MF formulae in the limit of a weakly non-Gaussian field yields analytical formulae, derived by Hikage et al., which can be used to constrain the coupling parameter fNL without the need for non-Gaussian simulations. We find -770 < fNL < 500 at 95 per cent CL, significantly improving the previous constraints by De Troia et al. on the BOOMERanG 2003 data set. These are the best fNL limits to date for suborbital probes.

KW - Cosmic background radiation

KW - Cosmology: observations

KW - Early Universe

KW - Methods: analytical

KW - Methods: statistical

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JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

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ER -

BOOMERanG constraints on primordial non-Gaussianity from analytical Minkowski functionals

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Keywords

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