Neutrino mass effects on the CMB polarization with PMF

Journal Article · Mon May 04 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3141667· OSTI ID:21304794

Kojima, Kazuhiko ^[1]; Kajino, Toshitaka ^[2]; Mathews, Grant J ^[3]

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1. Department of Astronomy, Graduate school of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)
2. Division of Theoretical Astronomy, National Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan)
3. Center for Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, IN 46556 (United States)

Our previous work showed that if a primordial magnetic field (PMF) was present during photon decoupling and afterward, massive neutrinos affect all modes of the CMB. This is because of the compensation of anisotropic stress between the neutrinos and the PMF. In order to study the observability of this new effect, we need careful analysis of the passive mode generated by the PMF. Here, we focus on the polarization of the CMB and study the observability of the finite neutrino mass effect.

• OSTI ID: 21304794
• Journal Information: AIP Conference Proceedings, Vol. 1120, Issue 1; Conference: 6. Japan-Italy symposium on heavy-ion physics, Tokai (Japan), 11-15 Nov 2008; Other Information: DOI: 10.1063/1.3141667; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANISOTROPY
BARYONS
DECOUPLING
GALAXY CLUSTERS
MAGNETIC FIELDS
MAGNETIC MOMENTS
NEUTRINO OSCILLATION
NEUTRINOS
PHOTONS
POLARIZATION
RELICT RADIATION
REST MASS
STRESSES