An Icosahedron-based Method for Pixelizing the Celestial Sphere

@inproceedings{Tegmark1996AnIM,
  title={An Icosahedron-based Method for Pixelizing the Celestial Sphere},
  author={Max Tegmark},
  year={1996}
}
For power spectrum estimation, it's important that the pixelization of a CMB sky map be smooth and regular to high degree. With this criterion in mind, the "COBE sky cube" was defined. This Letter has as central theme to further improve on this elegant scheme that uses a cube as projective base —here an icosahedron is used in its place. Although the sky cube is excellent, a further reduction of 20% of the number of pixels can be obtained while the pixel distance is maintained, and without any… CONTINUE READING

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