Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10773/31544
Título: | Chains of boson stars |
Autor: | Herdeiro, C. A. R. Kunz, J. Perapechka, I. Radu, E. Shnir, Y. |
Data: | 22-Mar-2021 |
Editora: | American Physical Society |
Resumo: | We study axially symmetric multi-soliton solutions of a complex scalar field theory with a sextic potential, minimally coupled to Einstein's gravity. These solutions carry no angular momentum and can be classified by the number of nodes of the scalar field, $k_z$, along the symmetry axis; they are interpreted as chains with $k_z+1$ boson stars, bound by gravity, but kept apart by repulsive scalar interactions. Chains with an odd number of constituents show a spiraling behavior for their ADM mass (and Noether charge) in terms of their angular frequency, similarly to a single fundamental boson star, as long as the gravitational coupling is small; for larger coupling, however, the inner part of the spiral is replaced by a merging with the fundamental branch of radially excited spherical boson stars. Chains with an even number of constituents exhibit a truncated spiral pattern, with only two or three branches, ending at a limiting solution with finite values of ADM mass and Noether charge. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/31544 |
DOI: | 10.1103/PhysRevD.103.065009 |
ISSN: | 2470-0010 |
Versão do Editor: | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.103.065009 |
Aparece nas coleções: | CIDMA - Artigos DMat - Artigos GGDG - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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PRD103(2021)065009.pdf | 2.12 MB | Adobe PDF | Ver/Abrir |
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