Towards Skyrmion Stars: Large Baryon Configurations in the Einstein-Skyrme Model

Piette, B.M.A.G.; Probert, G.I.

Abstract

We investigate the large baryon number sector of the Einstein-Skyrme model as a possible model for baryon stars. Gravitating hedgehog skyrmions have been investigated previously and the existence of stable solitonic stars excluded due to energy considerations [P. Bizon and T. Chmaj, Phys. Lett. B 297, 55 (1992).]. However, in this paper we demonstrate that by generating gravitating Skyrmions using rational maps, we can achieve multibaryon bound states while recovering spherical symmetry in the limit where B becomes large.

Citation

Piette, B., & Probert, G. (2007). Towards Skyrmion Stars: Large Baryon Configurations in the Einstein-Skyrme Model. Physical Review D, 75, https://doi.org/10.1103/physrevd.75.125023

• Journal Article Type: Article
• Publication Date: 2007-06
• Deposit Date: Nov 22, 2010
• Journal: Physical Review D - Particles, Fields, Gravitation, and Cosmology
• Print ISSN: 1550-7998
• Electronic ISSN: 1550-2368
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 75
• DOI: https://doi.org/10.1103/physrevd.75.125023
• Public URL: https://durham-repository.worktribe.com/output/1546401
• Publisher URL: http://link.aps.org/doi/10.1103/PhysRevD.75.125023