The DOI matches its Crossref record; 74 of the 74 references it cites were found in a registry or an index.
High-redshift clumpy discs and bulges in cosmological simulations
Open accessAbstract
We analyse the first cosmological simulations that recover the fragmentation of high-redshift galactic discs driven by cold streams. The fragmentation is recovered owing to an AMR resolution better than 70 pc with cooling below 104 K. We study three typical star-forming galaxies in haloes of ∼5 × 1011 M⊙ at z≃ 2.3 when they were not undergoing a major merger. The steady gas supply by cold streams leads to gravitationally unstable, turbulent discs, which fragment into giant clumps and transient features on a dynamical time-scale. The disc clumps are not associated with dark-matter haloes. The clumpy discs are self-regulated by gravity in a marginally unstable state. Clump migration and angular-momentum transfer on an orbital time-scale help the growth of a central bulge with a mass comparable to the disc. The continuous gas input keeps the system of clumpy disc and bulge in a near steady state for several Gyr. The average star formation rate, much of which occurs in the clumps, follows the gas accretion rate of ∼45 M⊙ yr−1. The simulated galaxies resemble in many ways the observed star-forming galaxies at high redshift. Their properties are consistent with the simple theoretical framework presented in Dekel, Sari & Ceverino. In particular, a two-component analysis reveals that the simulated discs are indeed marginally unstable, and the time evolution confirms the robustness of the clumpy configuration in a cosmological steady state. By z∼ 1, the simulated systems are stabilized by a dominant stellar spheroid, demonstrating the process of ‘morphological quenching’ of star formation. We demonstrate that the disc fragmentation is not a numerical artefact once the Jeans length is kept larger than nearly seven resolution elements, i.e. beyond the standard Truelove criterion.
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Citations
Cites
Stellar population synthesis at the resolution of 2003
Bruzual, G., & Charlot, S. (2003) · Monthly Notices of the Royal Astronomical Society · doi:10.1046/j.1365-8711.2003.06897.x · Cited by 10,500
FIVE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE OBSERVATIONS: COSMOLOGICAL INTERPRETATION
Komatsu, E., Dunkley, J., Nolta, M. R., Bennett, C. L., Gold, B., Hinshaw, G., Jarosik, N., Larson, D., Limon, M., Page, L., et al. (2009) · The Astrophysical Journal Supplement Series · doi:10.1088/0067-0049/180/2/330 · Cited by 5,786
The Global Schmidt Law in Star‐forming Galaxies
Kennicutt, Jr. (1998) · The Astrophysical Journal · doi:10.1086/305588 · Cited by 5,202
Galactic Dynamics: Second Edition
Binney, J., & Tremaine, S. (2008) · doi:10.1515/9781400828722 · Cited by 4,375 · cited 1×
“According to the standard Toomre instability analysis (Toomre 1964; Binney & Tremaine 2008, chapter 6), a rotating disc becomes unstable to axi-symmetric modes once the local gravity overcomes both differential rotation and pressure due to turbulence or thermal motions.”
MethodOn the Gravitational Stability of a Disk of Stars
Toomre, A. (1964) · The Astrophysical Journal · doi:10.1086/147861 · Cited by 3,349 · cited 2×
“According to the standard Toomre instability analysis (Toomre 1964; Binney & Tremaine 2008, chapter 6), a rotating disc becomes unstable to axi-symmetric modes once the local gravity overcomes both differential rotation and pressure due to turbulence or thermal motions.”
MethodHow do galaxies get their gas?
Kere, D., Katz, N., Weinberg, D. H., & Dave, R. (2005) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2005.09451.x · Cited by 2,270
Springel, V., & Hernquist, L. (2003) · Monthly Notices of the Royal Astronomical Society · doi:10.1046/j.1365-8711.2003.06206.x · Cited by 2,262
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×
“The heating rate due to feedback may or may not overcome the cooling rate, depending on the gas conditions in the star-forming regions (Dekel & Silk 1986; Ceverino & Klypin 2009).”
BackgroundSelf-citationHopkins, P. F., Hernquist, L., Cox, T. J., Di Matteo, T., Robertson, B., & Springel, V. (2006) · The Astrophysical Journal Supplement Series · doi:10.1086/499298 · Cited by 1,873
Galaxy bimodality due to cold flows and shock heating
Dekel, A., & Birnboim, Y. (2006) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2006.10145.x · Cited by 1,781
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Cited by
Astrophysics with the Laser Interferometer Space Antenna
Amaro-Seoane, P., Andrews, J., Arca Sedda, M., Askar, A., Baghi, Q., Balasov, R., Bartos, I., Bavera, S. S., Bellovary, J., Berry, C. P. L., et al. (2023) · Living Reviews in Relativity · doi:10.1007/s41114-022-00041-y · Cited by 609
CANDELS: THE PROGENITORS OF COMPACT QUIESCENT GALAXIES AT z∼ 2
Barro, G., Faber, S. M., Pérez-González, P. G., Koo, D. C., Williams, C. C., Kocevski, D. D., Trump, J. R., Mozena, M., McGrath, E., van der Wel, A., et al. (2013) · The Astrophysical Journal · doi:10.1088/0004-637x/765/2/104 · Cited by 462
Self-citationBell, E. F., van der Wel, A., Papovich, C., Kocevski, D., Lotz, J., McIntosh, D. H., Kartaltepe, J., Faber, S. M., Ferguson, H., Koekemoer, A., et al. (2012) · The Astrophysical Journal · doi:10.1088/0004-637x/753/2/167 · Cited by 304
Self-citationThe current status of galaxy formation
Silk, J., & Mamon, G. A. (2012) · Research in Astronomy and Astrophysics · doi:10.1088/1674-4527/12/8/004 · Cited by 294
ZFOURGE/CANDELS: ON THE EVOLUTION OF M* GALAXY PROGENITORS FROM z= 3 TO 0.5
Papovich, C., Labbé, I., Quadri, R., Tilvi, V., Behroozi, P., Bell, E. F., Glazebrook, K., Spitler, L., Straatman, C. M. S., Tran, K.-V., et al. (2015) · The Astrophysical Journal · doi:10.1088/0004-637x/803/1/26 · Cited by 143
Self-citation
Metadata
- Authors
- Ceverino, D., Dekel, A., & Bournaud, F.
- Venue
- Monthly Notices of the Royal Astronomical Society
- Publisher
- Oxford University Press (OUP)
- Published
- 2010-03
- ISSN
- 0035-8711 (ISSN-L)
- 1365-2966
- OpenAlex
- W2107036006
- Cited by
- 286
- References
- 74
- FWCI
- 9.48
- Type
- journal article
- Language
- en
- Open access
- green
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