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Published version

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2012-07-01

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/192985

Typical density profile for warm dark matter haloes

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https://doi.org/10.1111/j.1745-3933.2012.01274.x

Abstract

Using the model for (bottom-up) hierarchical halo growth recently developed by Salvador-Solé et al., we derive the typical spherically averaged density profile for haloes with several relevant masses in the concordant warm dark matter (ΛWDM) cosmology with non-thermal sterile neutrinos of two different masses. The predicted density profiles become flat at small radii, as expected from the effects of the spectrum cut-off. The core cannot be resolved, however, because the non-null particle velocity yields the fragmentation of minimum mass protohaloes in small nodes, which invalidates the model at the corresponding radii.

Subject

Halos (Meteorologia), Cosmologia, Matèria fosca (Astronomia)

Subject (English)

Halos (Meteorology), Cosmology, Dark matter (Astronomy)

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

VIÑAS, Jordi, SALVADOR SOLÉ, Eduard and MANRIQUE OLIVA, Alberto. Typical density profile for warm dark matter haloes. Monthly Notices of the Royal Astronomical Society. 2012. Vol. 424, num. 1, pags. L6-L10. ISSN 0035-8711. [consulted: 9 of June of 2026]. Available at: https://hdl.handle.net/2445/192985

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