Edge Detection, Cosmic Strings and the South Pole Telescope
We develop a method of constraining the cosmic string tension $Gμ$ which uses the Canny edge detection algorithm as a means of searching CMB temperature maps for the signature of the Kaiser-Stebbins effect. We test the potential of this method using high resolution, simulated CMB temperature maps. B...
| Main Authors: | , |
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| Format: | Text |
| Language: | unknown |
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arXiv
2008
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.48550/arxiv.0809.0865 https://arxiv.org/abs/0809.0865 |
| Summary: | We develop a method of constraining the cosmic string tension $Gμ$ which uses the Canny edge detection algorithm as a means of searching CMB temperature maps for the signature of the Kaiser-Stebbins effect. We test the potential of this method using high resolution, simulated CMB temperature maps. By modeling the future output from the South Pole Telescope project (including anticipated instrumental noise), we find that cosmic strings with $Gμ> 5.5\times10^{-8}$ could be detected. : 27 pages, 5 figures, reference and minor notes added, discussion of noise expanded, explanation of equation (4) expanded |
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