Abstract
The recently released BOOMERanG data were taken as “contradicting topological defect predictions.” We show that such a statement is partly misleading. Indeed, the presence of a series of acoustic peaks is perfectly compatible with a non-negligible topological defect contribution. In such a mixed perturbation model (inflation and topological defects) for the source of primordial fluctuations, the natural prediction is a slightly lower amplitude for the Doppler peaks, a feature shared by many other purely inflationary models. Thus, for the moment, it seems difficult to rule out these models with the current data.
- Received 14 February 2001
DOI:https://doi.org/10.1103/PhysRevD.65.021301
©2001 American Physical Society