2009-2010年ISI/SCI物理學(xué)領(lǐng)域引響率最高的論文

 2009年2月發(fā)表于Astrophysical Journal Supplement Series雜志的文章，業(yè)己成為近兩年來物理學(xué)領(lǐng)域被引次數(shù)最高的文章。
其中，2010年5-6月這兩個月，被引次數(shù)高達(dá)72次。
"Five-year Wilkinson Microwave Anistropy Probe observations: Likelihood and parameters from the WMAP data," by J. Dunkley and 18 others, Astrophysical Journal Supplement Series, 180(2): 306-29, February 2009.
Abstract: "This paper focuses on cosmological constraints derived from analysis of WMAP data alone. A simple Lambda CDM cosmological model fits the five-year WMAP temperature and polarization data. The basic parameters of the model are consistent with the three-year data and now better constrained: Omega(b)h(2) = 0.02273 +/- 0.00062, Omega(c)h(2) = 0.1099 +/- 0.0062, Omega(Lambda) = 0.742 +/- 0.030, n(s) = 0.963(-0.015)(+0.014), tau = 0.087 +/- 0.017, and sigma(8) = 0.796 +/- 0.036, with h = 0.719(-0.027)(+0.026). With five years of polarization data, we have measured the optical depth to reionization, tau > 0, at 5 sigma significance. The redshift of an instantaneous reionization is constrained to be z(reion) = 11.0 +/- 1.4 with 68% confidence. The 2 sigma lower limit is zreion > 8.2, and the 3 sigma limit is z(reion) > 6.7. This excludes a sudden reionization of the universe at z = 6 at more than 3.5 sigma significance, suggesting that reionization was an extended process. Using two methods for polarized foreground cleaning we get consistent estimates for the optical depth, indicating an error due to the foreground treatment of tau similar to 0.01. This cosmological model also fits small-scale cosmic microwave background (CMB) data, and a range of astronomical data measuring the expansion rate and clustering of matter in the universe. We find evidence for the first time in the CMB power spectrum for a nonzero cosmic neutrino background, or a background of relativistic species, with the standard three light neutrino species preferred over the best-fit Lambda CDM model with N-eff = 0 at > 99.5% confidence, and N-eff > 2.3 (95% confidence limit (CL)) when varied. The five-year WMAP data improve the upper limit on the tensor-to-scalar ratio, r < 0.43 (95% CL), for power-law models, and halve the limit on r for models with a running index, r < 0.58 (95% CL). With longer integration we find no evidence for a running spectral index, with dn(s)/d ln k = -0.037 +/- 0.028, and find improved limits on isocurvature fluctuations. The current WMAP-only limit on the sum of the neutrino masses is Sigma m(v) < 1.3 eV (95% CL), which is robust, to within 10%, to a varying tensor amplitude, running spectral index, or dark energy equation of state."