Video/Audio Open Access

The imprint on the cosmic microwave background (CMB) of Bianchi cosmologies

Daniela Saadeh; Stephen M. Feeney; Andrew Pontzen; Hiranya V. Peiris; Jason D. McEwen

These animations display the imprint that homogeneous but anisotropic Bianchi models induce in the cosmic microwave background (CMB).

 

 

scalars_movie.mp4 : Bianchi VIIh/VII0 scalar modes, imprint on the CMB for varying morphology parameters (matter and dark-energy density, rotation scale of shear principal axes)

vectors_movie.mp4: Bianchi VIIh/VII0 vector modes, imprint on the CMB for varying morphology parameters (matter and dark-energy density, rotation scale of shear principal axes)

tensor_movie.mp4: Bianchi VIIh/VII0 regular tensor modes, imprint on the CMB for varying morphology parameters (matter and dark-energy density, rotation scale of shear principal axes)

Additional fixed parameters for the three animations above:
cold-dark-matter physical density: 0.112
baryon physical density: 0.226
Pattern orientation additionally fixed to put spiral in full view

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SVTT_movie.mp4: combinations of Bianchi VIIh/VII0 scalar, vector, regular and irregular tensor modes for varying relative amplitudes of these degrees of freedom and phase angle.

Additional fixed parameters:
cold-dark-matter physical density: 0.112
baryon physical density 0.0226
matter density: 0.27
dark energy density: 0.7
rotation scale of shear principal axes: 0.5
Pattern orientation additionally fixed to put spiral in full view

Files (15.3 MB)
Name Size
scalars_movie.mp4
md5:3748f33773b8c76de2b4c464798bac56
1.5 MB Download
SVTT_movie.mp4
md5:3ceca1174afc53ee1b1a47cc85d542d5
5.0 MB Download
tensors_movie.mp4
md5:e8e85c6a48c046ff5c8689893abec923
5.4 MB Download
vectors_movie.mp4
md5:a59d5046085f1d2db11c8bca1d1676ed
3.4 MB Download
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