Large Scale Magnetic Fields: Galaxy Two-Point correlation function

Details Large Scale Magnetic Fields: Galaxy Two-Point correlation function Large Scale Magnetic Fields: Galaxy Two-Point correlation function

2003-03-24

arxiv.org/abs/astro-ph/0303523v1

Mon.Not.Roy.Astron.Soc. 342 (2003) 962

Astronomy and Astrophysics

Astrophysics

10 pages, 4 figures, accepted for publication in MNRAS

Scientific paper

10.1046/j.1365-8711.2003.06610.x

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 $B_0 \simeq 5 \times 10^{-8}$ G, (b) the absence of this signal from the present data gives an upper bound $B_0 \la 3 \times 10^{-8}$ G, (c) the future data can probe the magnetic fields of $\simeq 10^{-8}$ G. A comparison with other constraints on the present magnetic field shows that they are marginally compatible.However if the magenetic fields corresponding to $B_0 \simeq 10^{-8}$ G existed at the last scattering surface they will cause unacceptably large CMBR anisotropies.

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