Parameter Estimation from Improved Measurements of the CMB from QUaD Export

@article{Gupta:2009sy, abstract = {We evaluate the ability of cosmic microwave background (CMB) polarization spectra to constrain cosmological models by analyzing a multi-experiment CMB dataset including the final analysis of the QUaD experiment. We provide the best limits on parameters from combined polarization data and find that QUaD spectra combined with additional CMB datasets using the optimal pivot scale of k\_p=0.013 Mpc-1 prefer standard LCDM parameters of {omch2, ombh2, H\_0, A\_s, n\_s, tau}={0.113, 0.0224, 70.6, 2.29 times 10^-9, 0.960, 0.086}, with the confidence regions of ombh2, omch2 and H\_0 tightened due to the presence of QUaD data. QUaD alone constrains cold dark matter and baryon densities and the acoustic scale very well. The temperature and polarization sub-sets each provide good limits on cosmological parameters which are consistent with values obtained from a combination of existing CMB data. We incorporate small-scale CMB data to provide the tightest constraint on tensor modes from CMB data alone.}, archivePrefix = {arXiv}, author = {Collaboration, QUaD and Gupta, S. and Ade, P. and Bock, J. and Bowden, M. and Brown, M. L. and Cahill, G. and Castro, P. G. and Church, S. and Culverhouse, T. and Friedman, R. B. and Ganga, K. and Gear, W. K. and Hinderks, J. and Kovac, J. and Lange, A. E. and Leitch, E. and Melhuish, S. J. and Memari, Y. and Murphy, J. A. and Orlando, A. and O'Sullivan, C. and Piccirillo, L. and Pryke, C. and Rajguru, N. and Rusholme, B. and Schwarz, R. and Taylor, A. N. and Thompson, K. L. and Turner, A. H. and Wu, E. Y. S. and Zemcov, M.}, citeulike-article-id = {5897033}, citeulike-linkout-0 = {http://arxiv.org/abs/0909.1621}, citeulike-linkout-1 = {http://arxiv.org/pdf/0909.1621}, day = {9}, eprint = {0909.1621}, keywords = {cmb, cosmology, observational, parameter-estimation, polarization, quad}, month = {Sep}, posted-at = {2009-11-10 09:18:17}, priority = {2}, title = {Parameter Estimation from Improved Measurements of the CMB from QUaD}, url = {http://arxiv.org/abs/0909.1621}, year = {2009} }

TY - JOUR ID - Gupta:2009sy L3 - citeulike-article-id:5897033 N2 - We evaluate the ability of cosmic microwave background (CMB) polarization spectra to constrain cosmological models by analyzing a multi-experiment CMB dataset including the final analysis of the QUaD experiment. We provide the best limits on parameters from combined polarization data and find that QUaD spectra combined with additional CMB datasets using the optimal pivot scale of k_p=0.013 Mpc-1 prefer standard LCDM parameters of {omch2, ombh2, H_0, A_s, n_s, tau}={0.113, 0.0224, 70.6, 2.29 times 10^-9, 0.960, 0.086}, with the confidence regions of ombh2, omch2 and H_0 tightened due to the presence of QUaD data. QUaD alone constrains cold dark matter and baryon densities and the acoustic scale very well. The temperature and polarization sub-sets each provide good limits on cosmological parameters which are consistent with values obtained from a combination of existing CMB data. We incorporate small-scale CMB data to provide the tightest constraint on tensor modes from CMB data alone. TI - Parameter Estimation from Improved Measurements of the CMB from QUaD KW - cmb KW - cosmology KW - observational KW - parameter-estimation KW - polarization KW - quad AU - Collaboration, QUaD AU - Gupta, S AU - Ade, P AU - Bock, J AU - Bowden, M AU - Brown, ML AU - Cahill, G AU - Castro, PG AU - Church, S AU - Culverhouse, T AU - Friedman, RB AU - Ganga, K AU - Gear, WK AU - Hinderks, J AU - Kovac, J AU - Lange, AE AU - Leitch, E AU - Melhuish, SJ AU - Memari, Y AU - Murphy, JA AU - Orlando, A AU - O'Sullivan, C AU - Piccirillo, L AU - Pryke, C AU - Rajguru, N AU - Rusholme, B AU - Schwarz, R AU - Taylor, AN AU - Thompson, KL AU - Turner, AH AU - Wu, EYS AU - Zemcov, M PY - 2009/Sep/09/ UR - http://arxiv.org/abs/0909.1621 ER -