The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Galaxy morphology and star formation in the Illustris Simulation at z = 0
Open accessAbstract
We study how optical galaxy morphology depends on mass and star formation rate (SFR) in the Illustris Simulation. To do so, we measure automated galaxy structures in 10 808 simulated galaxies at z = 0 with stellar masses 109.7 < M*/Mȯ < 1012.3. We add observational realism to idealized synthetic images and measure non-parametric statistics in rest-frame optical and near-IR images from four directions. We find that Illustris creates a morphologically diverse galaxy population, occupying the observed bulge strength locus and reproducing median morphology trends versus stellar mass, SFR, and compactness. Morphology correlates realistically with rotation, following classification schemes put forth by kinematic surveys. Type fractions as a function of environment agree roughly with data. These results imply that connections among mass, star formation, and galaxy structure arise naturally from models matching global star formation and halo occupation functions when simulated with accurate methods. This raises a question of how to construct experiments on galaxy surveys to better distinguish between models. We predict that at fixed halo mass near 1012 Mȯ, disc-dominated galaxies have higher stellar mass than bulge-dominated ones, a possible consequence of the Illustris feedback model. While Illustris galaxies at M* ∼ 1011 Mȯ have a reasonable size distribution, those at M* ∼ 1010 Mȯ have half-light radii larger than observed by a factor of 2. Furthermore, at M* ∼ 1010.5–1011 Mȯ, a relevant fraction of Illustris galaxies have distinct ‘ring-like’ features, such that the bright pixels have an unusually wide spatial extent.
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Cites
Matplotlib: a 2D graphics environment
Hunter, J. D. (2007) · Computing in Science & Engineering · doi:10.1109/mcse.2007.55 · Cited by 39,249
Astropy: A community Python package for astronomy
The Astropy Collaboration, Robitaille, T. P., Tollerud, E. J., Greenfield, P., Droettboom, M., Bray, E., Aldcroft, T., Davis, M., Ginsburg, A., Price-Whelan, A. M., et al. (2013) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201322068 · Cited by 14,620
Lintott, C. J., Schawinski, K., Slosar, A., Land, K., Bamford, S., Thomas, D., Raddick, M. J., Nichol, R. C., Szalay, A., Andreescu, D., et al. (2008) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2008.13689.x · Cited by 1,488
THE MAJOR AND MINOR GALAXY MERGER RATES AT z < 1.5
Lotz, J. M., Jonsson, P., Cox, T. J., Croton, D., Primack, J. R., Somerville, R. S., & Stewart, K. (2011) · The Astrophysical Journal · doi:10.1088/0004-637x/742/2/103 · Cited by 450
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Cited by
Simulating galaxy formation with the IllustrisTNG model
Pillepich, A., Springel, V., Nelson, D., Genel, S., Naiman, J., Pakmor, R., Hernquist, L., Torrey, P., Vogelsberger, M., Weinberger, R., et al. (2018) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stx2656 · Cited by 2,007
Self-citationPillepich, A., Nelson, D., Springel, V., Pakmor, R., Torrey, P., Weinberger, R., Vogelsberger, M., Marinacci, F., Genel, S., van der Wel, A., et al. (2019) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stz2338 · Cited by 916
Self-citationPiotrowska, J. M., Bluck, A. F. L., Maiolino, R., & Peng, Y. (2022) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stab3673 · Cited by 156
Snyder, G. F., Rodriguez-Gomez, V., Lotz, J. M., Torrey, P., Quirk, A. C. N., Hernquist, L., Vogelsberger, M., & Freeman, P. E. (2019) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stz1059 · Cited by 65
Self-citationZanisi, L., Huertas-Company, M., Lanusse, F., Bottrell, C., Pillepich, A., Nelson, D., Rodriguez-Gomez, V., Shankar, F., Hernquist, L., Dekel, A., et al. (2021) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/staa3864 · Cited by 65
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Metadata
- Authors
- Snyder, G. F., Torrey, P., Lotz, J. M., Genel, S., McBride, C. K., Vogelsberger, M., Pillepich, A., Nelson, D., Sales, L. V., Sijacki, D., Hernquist, L., & Springel, V.
- Venue
- Monthly Notices of the Royal Astronomical Society
- Publisher
- Oxford University Press (OUP)
- Published
- 2015-10-08
- Volume
- 454
- Issue
- 2
- Pages
- 1886-1908
- ISSN
- 0035-8711 (ISSN-L)
- 1365-2966
- OpenAlex
- W1801137374
- Cited by
- 202
- References
- 4
- FWCI
- 13.50
- Type
- journal article
- Language
- en
- Open access
- green
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