Confrontation of Modified Newtonian Dynamics Predictions withWilkinson Microwave Anisotropy ProbeFirst Year Data

I present a model devoid of non-baryonic cold dark matter (CDM) whichprovides an acceptable fit to the WMAP data for the power spectrum oftemperature fluctuations in the cosmic background radiation (CBR). An a prioriprediction of such no-CDM models was a first-to-second peak amplitude ratioA1:2 = 2.4. WMAP measures A1:2 = 2.34 +/- 0.09. The baryon content is thedominant factor in fixing this ratio; no-CDM models which are consistent withthe WMAP data are also consistent with constraints on the baryon density fromthe primordial abundances of 2H, 4He, and 7Li. However, in order to match themodest width of the acoustic peaks observed by WMAP, a substantial neutrinomass is implied: m(nu) ~ 1 eV. Even with such a heavy neutrino, structure isexpected to form rapidly under the influence of MOND. Consequently, the epochof reionization should occur earlier than is nominally expected in LCDM. Thisprediction is realized in the polarization signal measured by WMAP. Anoutstanding test is in the amplitude of the third acoustic peak. Experimentswhich probe high-L appear to favor a third peak which is larger than predictedby the no-CDM model.Comment: ApJ, in press. 33 pages, 7 figure