Cosmological Parameters from the 2003 Flight of BOOMERANG

Creators: MacTavish, C. J.; Crill, B. P.; Hivon, E.; Jones, W. C.; Lange, A. E.

Abstract

We present the cosmological parameters from the CMB intensity and polarization power spectra of the 2003 Antarctic flight of the BOOMERANG telescope. The BOOMERANG data alone constrain the parameters of the ΛCDM model remarkably well and are consistent with constraints from a multiexperiment combined CMB data set. We add LSS data from the 2dF and SDSS redshift surveys to the combined CMB data set and test several extensions to the standard model including running of the spectral index, curvature, tensor modes, the effect of massive neutrinos, and an effective equation of state for dark energy. We also include an analysis of constraints to a model that allows a CDM isocurvature admixture.

Additional Information

© 2006 American Astronomical Society. Received 2005 July 21; accepted 2005 September 9. We gratefully acknowledge support from the CIAR, CSA, and NSERC in Canada; ASI, University La Sapienza, and PNRA in Italy; PPARC and the Leverhulme Trust in the UK; and NASA (awards NAG5-9251 and NAG5-12723) and NSF (awards OPP 99-80654 and OPP 04-07592) in the US. Additional support for detector development was provided by CIT and the Jet Propulsion Laboratory (JPL). C. B. N. acknowledges support from a Sloan Foundation Fellowship; W. C. J. and T. E. M. were partially supported by NASA GSRP Fellowships. Field, logistical, and flight support were supplied by USAP and NSBF; data recovery was particularly appreciated. This research used resources at NERSC, supported by the DOE under contract DE-AC03-76SF00098, and the MacKenzie cluster at CITA, funded by the Canada Foundation for Innovation. We also thank the CASPUR (Rome, Italy) computational facilities and the Applied Cluster Computing Technologies Group at JPL for computing time and technical support. Some of the results in this paper have been derived using the HEALPix package (Gorski et al. 2005), as well as the FFTW package (Frigo & Johnson 2005). Thanks to Anze Slosar for making his low-l WMAP likelihood code available to us. The BOOMERANG field team is also grateful to the Coffee House at McMurdo Station, Antarctica, for existing.

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