PROBING PRIMORDIAL MAGNETIC FIELDS USING Lyα CLOUDS
作者： Kanhaiya L. Pandey , Shiv K. Sethi
DOI: 10.1088/0004-637X/762/1/15
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摘要: From previous studies of the effect primordial magnetic fields on early structure formation, we know that presence during formation could induce more perturbations at small scales (at present 1-10 h ?1?Mpc) as compared to usual ?CDM theory. Matter power spectra over these are effectively probed by cosmological observables such shear correlation and Ly? clouds. In this paper discuss implications distribution We simulate line-of-sight density fluctuation including contribution coming from fields. compute evolution opacity for case compare our theoretical estimates with existing data constrain parameters also when two correlated. Our analysis yields an upper bound roughly 0.3-0.6 nG field strength a range nearly scale-invariant models, corresponding spectrum index n ?3.
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