Large Scale Magnetic Fields: Galaxy Two-Point correlation function
Abstract
We study the effect of large scale tangled magnetic fields on the galaxy two-point correlation function in the redshift space. We show that (a) the magnetic field effects can be comparable the gravity-induced clustering for present magnetic field strength B0 5 × 10-8 G, (b) the absence of this signal from the present data gives an upper bound B0 3 × 10-8 G, (c) the future data can probe the magnetic fields of 10-8 G. A comparison with other constraints on the present magnetic field shows that they are marginally compatible.However if the magenetic fields corresponding to B0 10-8 G existed at the last scattering surface they will cause unacceptably large CMBR anisotropies.
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