740 8 2883 1 8190 document 2883 kr05.pdf application/pdf 88446f718ee1cacad13439850cab5153 MD5 200874 2014-01-27 22:00:56 http://eprints.iliauni.edu.ge/740/1/kr05.pdf 740 1 1 application/pdf text en public

kr05.pdf

2892 2 8212 document 2892 lightbox.jpg image/png f2e07b6b13d1dccdf55a039910b8ed94 MD5 64266 2014-01-27 22:10:57 http://eprints.iliauni.edu.ge/740/3/lightbox.jpg 740 3 3 image/png other Thumbnails conversion from text to thumbnail_lightbox ge public

lightbox.jpg

http://eprints.org/relation/isVersionOf http://eprints.iliauni.edu.ge/id/document/2883 http://eprints.org/relation/isVolatileVersionOf http://eprints.iliauni.edu.ge/id/document/2883 http://eprints.org/relation/islightboxThumbnailVersionOf http://eprints.iliauni.edu.ge/id/document/2883 2893 2 8213 document 2893 preview.jpg image/png 6aac23a7618db625839635e0fd9bd7ce MD5 24003 2014-01-27 22:10:59 http://eprints.iliauni.edu.ge/740/4/preview.jpg 740 4 4 image/png other Thumbnails conversion from text to thumbnail_preview ge public

preview.jpg

http://eprints.org/relation/isVersionOf http://eprints.iliauni.edu.ge/id/document/2883 http://eprints.org/relation/isVolatileVersionOf http://eprints.iliauni.edu.ge/id/document/2883 http://eprints.org/relation/ispreviewThumbnailVersionOf http://eprints.iliauni.edu.ge/id/document/2883 2894 2 8214 document 2894 medium.jpg image/png 9e0df04d3bc545e852298b710737883e MD5 7265 2014-01-27 22:11:00 http://eprints.iliauni.edu.ge/740/5/medium.jpg 740 5 5 image/png other Thumbnails conversion from text to thumbnail_medium ge public

medium.jpg

http://eprints.org/relation/isVersionOf http://eprints.iliauni.edu.ge/id/document/2883 http://eprints.org/relation/isVolatileVersionOf http://eprints.iliauni.edu.ge/id/document/2883 http://eprints.org/relation/ismediumThumbnailVersionOf http://eprints.iliauni.edu.ge/id/document/2883 2895 2 8215 document 2895 small.jpg image/png 003bea5f43852fdb0f8cb8e8290c4373 MD5 1773 2014-01-27 22:11:01 http://eprints.iliauni.edu.ge/740/6/small.jpg 740 6 6 image/png other Thumbnails conversion from text to thumbnail_small ge public

small.jpg

http://eprints.org/relation/isVersionOf http://eprints.iliauni.edu.ge/id/document/2883 http://eprints.org/relation/isVolatileVersionOf http://eprints.iliauni.edu.ge/id/document/2883 http://eprints.org/relation/issmallThumbnailVersionOf http://eprints.iliauni.edu.ge/id/document/2883 archive 131 disk0/00/00/07/40 2014-01-29 19:48:54 2015-03-27 06:58:32 2014-01-29 19:48:54 article show Kahniashvili Tina tinatin@iliauni.edu.ge Ratra Bharat pub QB QC public Cosmological magnetic fields induce temperature and polarization fluctuations in the cosmic microwave background (CMB) radiation. A cosmological magnetic field with current amplitude of order 10-9 G is detectable via observations of CMB anisotropies. This magnetic field (with or without helicity) generates vector perturbations through vortical motions of the primordial plasma. This paper shows that magnetic field helicity induces parity-odd cross correlations between CMB temperature and B-polarization fluctuations and between E- and B-polarization fluctuations, correlations which are zero for fields with no helicity (or for any parity-invariant source). Helical fields also contribute to parity-even temperature and polarization anisotropies, canceling part of the contribution from the symmetric component of the magnetic field. We give analytic approximations for all CMB temperature and polarization anisotropy vector power spectra due to helical magnetic fields. These power spectra offer a method for detecting cosmological helical magnetic fields, particularly when combined with Faraday rotation measurements which are insensitive to helicity. 2005 published Physical Review D 71 103006 TRUE