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astro-ph.CO2026
Gravitational waves from cosmic strings with friction: analytical approximations and parameter space
Sergei Mukovnikov, Lara Sousa
We derive analytical approximations to describe the ultra-high-frequency secondary peak of the stochastic gravitational wave background generated by cosmic strings that is sourced…
astro-ph.CO2026
A velocity-dependent two-scale model for cosmic string networks with small-scale structure
Teresa O. Miranda, Lara Sousa
We develop a semi-analytical model to describe the cosmological evolution of networks of cosmic strings with small-scale structure, by extending the velocity-dependent one-scale mo…
astro-ph.CO2026
Cosmic strings and domain walls: the impact of CMB -mode data
Luca Caloni, Ricardo Z. Ferreira, Lara Sousa +1
We analyse CMB constraints on stable networks of cosmic strings and domain walls using for the first time full Planck 2018 data together with BICEP/Keck 2018 -mode measurements.…