Effects of Cosmic String Velocities and the Origin of Globular Clusters

Abstract

With the hypothesis that cosmic string loops act as seeds for globular clusters in mind, we study the role that velocities of these strings will play in determining the mass distribution of globular clusters. Loops with high enough velocities will not form compact and roughly spherical objects and can hence not be the seeds for globular clusters. We compute the expected number density and mass function of globular clusters as a function of both the string tension and the peak loop velocity, and compare the results with the observational data on the mass distribution of globular clusters in our Milky Way. We determine the critical peak string loop velocity above which the agreement between the string loop model for the origin of globular clusters (neglecting loop velocities) and observational data is lost.

8 pages, 5 figures

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Cited by in corpus (9)

• Probing Cosmic Superstrings with Gravitational Waves
• Constraints on Superconducting Cosmic Strings from the Global $21$-cm Signal before Reionization
• Intermediate Mass Black Hole Seeds from Cosmic String Loops
• Massive black holes at high redshifts from superconducting cosmic strings
• On the Possible Enhancement of the Global $21$-cm Signal at Reionization from the Decay of Cosmic String Cusps
• Fast Radio Bursts from the Decay of Cosmic String Cusps
• Thermodynamics of Cosmic Defect Network Evolution
• Cosmic Microwave Background Spectral Distortions from Cosmic String Loops
• Ionization from Cosmic Strings at Cosmic Dawn