Long-Term Stable Nonlinear Evolutions of Ultracompact Black-Hole Mimickers
We study the stability of ultracompact boson stars admitting light rings combining a perturbative analysis with 3+1 numerical-relativity simulations with and without symmetry assumptions. We observe excellent agreement between all perturbative and numerical results, which uniformly support the hypothesis that this family of black-hole mimickers is separated into stable and unstable branches by extremal-mass configurations. This separation includes, in particular, thin-shell boson stars with light rings located on the stable branch, which we conclude to represent long-term stable black-hole mimickers.
Authors
- Seppe Staelens (ORCID: https://orcid.org/0000-0002-1262-1600)
- Tamara Evstafyeva (ORCID: https://orcid.org/0000-0002-2818-701X)
- Gareth Arturo Marks (ORCID: https://orcid.org/0009-0003-3160-9337)
- Ulrich Sperhake (ORCID: https://orcid.org/0000-0002-3134-7088)
Institutions
- California Institute of Technology (US)
- Johns Hopkins University (US)
- Perimeter Institute (CA)
- University of Cambridge (GB)
- KU Leuven (BE)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2025-09-26
- DOI
- https://doi.org/10.1103/lk48-7r2f
- Citations
- 3
- Primary Topic
- Pulsars and Gravitational Waves Research
- Type
- article
- Field-Weighted Citation Impact
- 3.46
Funders
- National Science Foundation
- San Diego Supercomputer Center
- Government of Canada
- University of Cambridge
- Cambridge Trust
- Institut Périmètre de physique théorique
- Ministry of Colleges and Universities
- Science and Technology Facilities Council