The DOI matches its Crossref record; 83 of the 83 references it cites were found in a registry or an index.
Galaxy formation with BECDM – I. Turbulence and relaxation of idealized haloes
Open accessAbstract
We present a theoretical analysis of some unexplored aspects of relaxed Bose–Einstein condensate dark matter (BECDM) haloes. This type of ultralight bosonic scalar field dark matter is a viable alternative to the standard cold dark matter (CDM) paradigm, as it makes the same large-scale predictions as CDM and potentially overcomes CDM's small-scale problems via a galaxy-scale de Broglie wavelength. We simulate BECDM halo formation through mergers, evolved under the Schrödinger–Poisson equations. The formed haloes consist of a soliton core supported against gravitational collapse by the quantum pressure tensor and an asymptotic r−3 NFW-like profile. We find a fundamental relation of the core-to-halo mass with the dimensionless invariant Ξ ≡ |E|/M3/(Gm/ℏ)2 or Mc/M ≃ 2.6Ξ1/3, linking the soliton to global halo properties. For r ≥ 3.5 rc core radii, we find equipartition between potential, classical kinetic and quantum gradient energies. The haloes also exhibit a conspicuous turbulent behaviour driven by the continuous reconnection of vortex lines due to wave interference. We analyse the turbulence 1D velocity power spectrum and find a k−1.1 power law. This suggests that the vorticity in BECDM haloes is homogeneous, similar to thermally-driven counterflow BEC systems from condensed matter physics, in contrast to a k−5/3 Kolmogorov power law seen in mechanically-driven quantum systems. The mode where the power spectrum peaks is approximately the soliton width, implying that the soliton-sized granules carry most of the turbulent energy in BECDM haloes.
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Cites
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Black holes, gravitational waves and fundamental physics: a roadmap
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Hui, L. (2021) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-120920-010024 · Cited by 373
Di Valentino, E., Said, J. L., Riess, A., Pollo, A., Poulin, V., Gómez-Valent, A., Weltman, A., Palmese, A., Huang, C. D., Bruck, C. V. D., et al. (2025) · Physics of the Dark Universe · doi:10.1016/j.dark.2025.101965 · Cited by 319
Metadata
- Authors
- Mocz, P., Vogelsberger, M., Robles, V. H., Zavala, J., Boylan-Kolchin, M., Fialkov, A., & Hernquist, L.
- Venue
- Monthly Notices of the Royal Astronomical Society
- Publisher
- Oxford University Press (OUP)
- Published
- 2017-07-25
- Volume
- 471
- Issue
- 4
- Pages
- 4559-4570
- ISSN
- 0035-8711 (ISSN-L)
- 1365-2966
- OpenAlex
- W2614520795
- Cited by
- 323
- References
- 83
- FWCI
- 12.46
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Mocz, P., Vogelsberger, M., Robles, V. H., Zavala, J., Boylan-Kolchin, M., Fialkov, A., & Hernquist, L. (2017). Galaxy formation with BECDM – I. Turbulence and relaxation of idealized haloes. Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1093/mnras/stx1887
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