The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
HALO EXPANSION IN COSMOLOGICAL HYDRO SIMULATIONS: TOWARD A BARYONIC SOLUTION OF THE CUSP/CORE PROBLEM IN MASSIVE SPIRALS
Open accessAbstract
A clear prediction of the cold dark matter (CDM) model is the existence of cuspy dark matter halo density profiles on all mass scales. This is not in agreement with the observed rotation curves of spiral galaxies, challenging on small scales the otherwise successful CDM paradigm. In this work we employ high-resolution cosmological hydrodynamical simulations to study the effects of dissipative processes on the inner distribution of dark matter in Milky Way like objects ( M ≈ 10 12 M ☉ ). Our simulations include supernova feedback, and the effects of the radiation pressure of massive stars before they explode as supernovae. The increased stellar feedback results in the expansion of the dark matter halo instead of contraction with respect to N -body simulations. Baryons are able to erase the dark matter cuspy distribution, creating a flat, cored, dark matter density profile in the central several kiloparsecs of a massive Milky-Way-like halo. The profile is well fit by a Burkert profile, with fitting parameters consistent with the observations. In addition, we obtain flat rotation curves as well as extended, exponential stellar disk profiles. While the stellar disk we obtain is still partially too thick to resemble the Milky Way thin disk, this pilot study shows that there is enough energy available in the baryonic component to alter the dark matter distribution even in massive disk galaxies, providing a possible solution to the long-standing problem of cusps versus cores.
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Cites
Spergel, D. N., Verde, L., Peiris, H. V., Komatsu, E., Nolta, M. R., Bennett, C. L., Halpern, M., Hinshaw, G., Jarosik, N., Kogut, A., et al. (2003) · The Astrophysical Journal Supplement Series · doi:10.1086/377226 · Cited by 10,976
A Universal Density Profile from Hierarchical Clustering
Navarro, J. F., Frenk, C. S., & White, S. D. M. (1997) · The Astrophysical Journal · doi:10.1086/304888 · Cited by 9,917
Core condensation in heavy halos: a two-stage theory for galaxy formation and clustering
White, S. D. M., & Rees, M. J. (1978) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/183.3.341 · Cited by 3,919
The origin of dwarf galaxies, cold dark matter, and biased galaxy formation
Dekel, A., & Silk, J. (1986) · The Astrophysical Journal · doi:10.1086/164050 · Cited by 1,919 · cited 1×
“Dekel & Silk (1986) showed that supernovae can eject matter from halos up to 100 km s−1, but it has yet to be seen what impact this might have on dark matter profiles, nor how the addition of radiation pressure feedback might change things.”
BackgroundContraction of dark matter galactic halos due to baryonic infall
Blumenthal, G. R., Faber, S. M., Flores, R., & Primack, J. R. (1986) · The Astrophysical Journal · doi:10.1086/163867 · Cited by 1,213 · cited 1×
“This process is dubbed ‘adiabatic contraction’ (e.g. Blumenthal et al. 1986, Gnedin et al. 2004).”
Method
Cited by
Cappellari, M., Scott, N., Alatalo, K., Blitz, L., Bois, M., Bournaud, F., Bureau, M., Crocker, A. F., Davies, R. L., Davis, T. A., et al. (2013) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stt562 · Cited by 734
Governato, F., Zolotov, A., Pontzen, A., Christensen, C., Oh, S. H., Brooks, A. M., Quinn, T., Shen, S., & Wadsley, J. (2012) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2012.20696.x · Cited by 640
Self-citationThe unexpected diversity of dwarf galaxy rotation curves
Oman, K. A., Navarro, J. F., Fattahi, A., Frenk, C. S., Sawala, T., White, S. D. M., Bower, R., Crain, R. A., Furlong, M., Schaller, M., et al. (2015) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stv1504 · Cited by 477
Read, J. I. (2014) · Journal of Physics G: Nuclear and Particle Physics · doi:10.1088/0954-3899/41/6/063101 · Cited by 489
Making Galaxies In a Cosmological Context: the need for early stellar feedback
Stinson, G. S., Brook, C., Macciò, A. V., Wadsley, J., Quinn, T. R., & Couchman, H. M. P. (2013) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/sts028 · Cited by 431
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Metadata
- Authors
- Macciò, A. V., Stinson, G., Brook, C. B., Wadsley, J., Couchman, H. M. P., Shen, S., Gibson, B. K., & Quinn, T.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2011-12-09
- Volume
- 744
- Issue
- 1
- Pages
- L9
- ISSN
- 2041-8205 (ISSN-L)
- 2041-8213
- OpenAlex
- W2001065937
- Cited by
- 201
- References
- 5
- FWCI
- 16.42
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: HALO EXPANSION IN COSMOLOGICAL HYDRO SIMULATIONS: TOWARD A BARYONIC SOLUTION OF THE CUSP/CORE PROBLEM IN MASSIVE SPIRALS. https://app.cochat.ai/papers/10.1088/2041-8205/744/1/l9
- The paper
- Macciò, A. V., Stinson, G., Brook, C. B., Wadsley, J., Couchman, H. M. P., Shen, S., Gibson, B. K., & Quinn, T. (2012). HALO EXPANSION IN COSMOLOGICAL HYDRO SIMULATIONS: TOWARD A BARYONIC SOLUTION OF THE CUSP/CORE PROBLEM IN MASSIVE SPIRALS. The Astrophysical Journal. https://doi.org/10.1088/2041-8205/744/1/l9
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