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CMB and LSS Power Spectra From Local Cosmic String Seeded Struture Formation

Carlo R. Contaldi·Mark Hindmarsh·Joao Magueijo
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Abstract

We evaluate the two point functions of the stress energy from the largest string simulations carried out so far. The two point functions are used to calculate the cosmic microwave background (CMB) and cold dark matter (CDM) power spectra from local cosmic string models for structure formation. We find that our spectra differ significantly from those previously calculated for both global and local defects. We find a higher Doppler peak at $l=400-600$ and a less severe bias problem than for global defects. Spectra were obtained for a variety of network energy-decay mechanisms.

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Carlo R. Contaldi, Mark Hindmarsh, Joao Magueijo. 1998-10-26. CMB and LSS Power Spectra From Local Cosmic String Seeded Struture Formation. https://arxiv.org/abs/astro-ph/9810411

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