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Black Holes from Blue Spectra

James E. Lidsey·B. J. Carr·J. H. Gilbert
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Abstract

Blue primordial power spectra with a spectral index $n>1$ can lead to a significant production of primordial black holes in the very early Universe. The evaporation of these objects leads to a number of observational consequences and a model independent upper limit of $n \approx 1.4$. In some cases this limit is strengthened to $n=1.3$. Such limits may be employed to define the boundary to the region of parameter space consistent with generalized inflationary predictions. [To appear in Proceedings of the CASE WESTERN CMB WORKSHOP, April 22-24 1994. Figures available on request from J.H.Gilbert@qmw.ac.uk]

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James E. Lidsey, B. J. Carr, J. H. Gilbert. 1994-06-09. Black Holes from Blue Spectra. https://arxiv.org/abs/astro-ph/9406028

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