@inproceedings{f0de2ea5fe424f0ca3adb0286eb9e97f,
title = "Evidence for a primordial magnetic field from the CMB polarization and power spectra",
abstract = "We present the newest statistical and numerical analysis of the matter and cosmic microwave background (CMB) power spectrum with effects of the primordial magnetic field (PMF) included. New limits to the PMF strength and power spectral index are obtained based upon the accumulated data for both the matter and CMB power spectra on small angular scales. We find that a maximum develops in the probability distribution for a magnitude of the PMF of Bλ = 0:85±1:25(±1) nG on a comoving scale of at 1 Mpc, corresponding to upper limits of < 2:10nG(68\%CL) and < 2:98nG(95\%CL). While for the power spectral index we find nB =-2:37+0:88 -0:73(±1σ), corresponding to upper limits of < -1:19(68\%CL) and < -0:25(95\%CL). This result provides new constraints on models for magnetic field generation and the physics of the early universe. We have also made an analysis of limits on the neutrino mass which includes the formation of large scale structure in the presence of a primordial magnetic field. We find that new upper and lower bounds on the neutrino mass are possible based upon fits to the CMB power spectrum which include the existing independent constrains on the matter density fluctuation parameter σ8 and the primordial magnetic field.",
keywords = "CMB, CMB polarization, Neutrino mass from CMB, Primordial magnetic field",
author = "Mathews, \{G. J.\} and Yamazaki, \{D. G.\} and K. Ichiki and T. Kajino",
year = "2012",
doi = "10.1142/9789814374552\_0425",
language = "英语",
isbn = "9814374512",
series = "12th Marcel Grossmann Meeting on Recent Dev. in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Proc. of the MG 2009 Meeting on General Relativity",
publisher = "World Scientific Publishing Co. Pte Ltd",
pages = "2127--2129",
booktitle = "12th Marcel Grossmann Meeting on Recent Dev. in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Proc. of the MG 2009 Meeting on General Relativity",
address = "新加坡",
note = "12th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, MG 2009 ; Conference date: 12-07-2009 Through 18-07-2009",
}