Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/31544
Title: | Chains of boson stars |
Author: | Herdeiro, C. A. R. Kunz, J. Perapechka, I. Radu, E. Shnir, Y. |
Issue Date: | 22-Mar-2021 |
Publisher: | American Physical Society |
Abstract: | 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 |
Publisher Version: | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.103.065009 |
Appears in Collections: | CIDMA - Artigos DMat - Artigos GGDG - Artigos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
PRD103(2021)065009.pdf | 2.12 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.