Rights statement: © 2004 The American Physical Society
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Note on the robustness of the Neutrino Mass Bounds from cosmology
AU - H. Brandenberger, Robert
AU - Mazumdar, Anupam
AU - Yamaguchi, Masahide
N1 - © 2004 The American Physical Society
PY - 2004/1/29
Y1 - 2004/1/29
N2 - The recent high precision maps of cosmic microwave anisotropies combined with measurements of the galaxy power spectrum from new large-scale redshift surveys have allowed stringent bounds on the sum of the neutrino masses to be placed. The past analyses, however, have implicitly assumed that the spectrum of primordial density fluctuations is adiabatic and coherent, as predicted in the simplest models of inflation. In this paper, we show that the limits hold even if the assumption on the primordial power spectrum is relaxed to allow for a contribution of nonadiabatic, incoherent fluctuations such as would be predicted by topological defects.
AB - The recent high precision maps of cosmic microwave anisotropies combined with measurements of the galaxy power spectrum from new large-scale redshift surveys have allowed stringent bounds on the sum of the neutrino masses to be placed. The past analyses, however, have implicitly assumed that the spectrum of primordial density fluctuations is adiabatic and coherent, as predicted in the simplest models of inflation. In this paper, we show that the limits hold even if the assumption on the primordial power spectrum is relaxed to allow for a contribution of nonadiabatic, incoherent fluctuations such as would be predicted by topological defects.
U2 - 10.1103/PhysRevD.69.081301
DO - 10.1103/PhysRevD.69.081301
M3 - Journal article
VL - 69
JO - Physical Review D
JF - Physical Review D
SN - 1550-7998
IS - 8
M1 - 081301(R)
ER -