The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
On the Origin of Cusps in Dark Matter Halos
Open accessAbstract
Observed cusps with density profiles ρ ∝ r -1 or shallower in the central regions of galaxies cannot be reproduced in the standard cold dark matter picture of hierarchical clustering. Previous claims to the contrary were based on simulations with relatively few particles and substantial softening. We present simulations with particle numbers 1 order of magnitude higher and essentially no softening, and we show that typical central density profiles are clearly steeper than ρ ∝ r -1 . The observed shallower profiles may have formed through the smoothing effect of the spiral-in of central black holes in previous merger phases. In addition, we confirm the presence of a temperature inversion in the inner 5 kpc of massive galactic halos and illustrate its formation as a natural result of the merging of unequal progenitors.
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Citations
Cites
The Structure of Cold Dark Matter Halos
Navarro, J. F., Frenk, C. S., & White, S. D. M. (1996) · The Astrophysical Journal · doi:10.1086/177173 · Cited by 8,544 · cited 1×
“In simulations with N 1 10,000 such as those reported by Dubinski & Carlberg (1991) and Navarro et al. (1996a, 1996b), the local relaxation time at 5 kpc was approximately 3.0 3 109 yr, implying that the effect of two-body relaxation completely dominated their results at that distance.”
MethodInfluential
Cited by
The Aquarius Project: the subhaloes of galactic haloes
Springel, V., Wang, J., Vogelsberger, M., Ludlow, A., Jenkins, A., Helmi, A., Navarro, J. F., Frenk, C. S., & White, S. D. M. (2008) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2008.14066.x · Cited by 1,889
Triaxial Modeling of Halo Density Profiles with High‐Resolution N‐Body Simulations
Jing, Y. P., & Suto, Y. (2002) · The Astrophysical Journal · doi:10.1086/341065 · Cited by 855
The Density Profiles of the Dark Matter Halo Are Not Universal
Jing, Y. P., & Suto, Y. (2000) · The Astrophysical Journal · doi:10.1086/312463 · Cited by 423
The Structural Evolution of Substructure
Hayashi, E., Navarro, J. F., Taylor, J. E., Stadel, J., & Quinn, T. (2003) · The Astrophysical Journal · doi:10.1086/345788 · Cited by 406
Ciotti, L., & Ostriker, J. P. (2007) · The Astrophysical Journal · doi:10.1086/519833 · Cited by 373
Metadata
- Authors
- Fukushige, T., & Makino, J.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1997-03-01
- Volume
- 477
- Issue
- 1
- Pages
- L9-L12
- ISSN
- 0004-637X (ISSN-L)
- OpenAlex
- W2006612756
- Cited by
- 250
- References
- 1
- FWCI
- 14.81
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Fukushige, T., & Makino, J. (1997). On the Origin of Cusps in Dark Matter Halos. The Astrophysical Journal. https://doi.org/10.1086/310516
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
