TY - JOUR
T1 - A complete 3D numerical study of the effects of pseudoscalar-photon mixing on quasar polarizations
AU - Agarwal, Nishant
AU - Aluri, Pavan K.
AU - Jain, Pankaj
AU - Khanna, Udit
AU - Tiwari, Prabhakar
PY - 2012/3
Y1 - 2012/3
N2 - We present the results of three-dimensional simulations of quasar polarizations in the presence of pseudoscalar-photon mixing in the intergalactic medium. The intergalactic magnetic field is assumed to be uncorrelated in wave vector space but correlated in real space. Such a field may be obtained if its origin is primordial. Furthermore we assume that the quasars, located at cosmological distances, have negligible initial polarization. In the presence of pseudoscalar-photon mixing we show, through a direct comparison with observations, that this may explain the observed large scale alignments in quasar polarizations within the framework of big bang cosmology. We find that the simulation results give a reasonably good fit to the observed data.
AB - We present the results of three-dimensional simulations of quasar polarizations in the presence of pseudoscalar-photon mixing in the intergalactic medium. The intergalactic magnetic field is assumed to be uncorrelated in wave vector space but correlated in real space. Such a field may be obtained if its origin is primordial. Furthermore we assume that the quasars, located at cosmological distances, have negligible initial polarization. In the presence of pseudoscalar-photon mixing we show, through a direct comparison with observations, that this may explain the observed large scale alignments in quasar polarizations within the framework of big bang cosmology. We find that the simulation results give a reasonably good fit to the observed data.
UR - http://www.scopus.com/inward/record.url?scp=84858168967&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-012-1928-y
DO - 10.1140/epjc/s10052-012-1928-y
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AN - SCOPUS:84858168967
SN - 1434-6044
VL - 72
SP - 1
EP - 10
JO - European Physical Journal C
JF - European Physical Journal C
IS - 3
M1 - 1928
ER -