The DOI matches its Crossref record; 137 of the 137 references it cites were found in a registry or an index.
The effect of galaxy mass ratio on merger-driven starbursts
Open accessAbstract
We employ numerical simulations of galaxy mergers to explore the effect of galaxy mass ratio on merger-driven starbursts. Our numerical simulations include radiative cooling of gas, star formation, and stellar feedback to follow the interaction and merger of four disc galaxies. The galaxy models span a factor of 23 in total mass and are designed to be representative of typical galaxies in the local universe. We find that the merger-driven star formation is a strong function of merger mass ratio, with very little, if any, induced star formation for large mass ratio mergers. We define a burst efficiency that is useful to characterize the merger-driven star formation and test that it is insensitive to uncertainties in the feedback parametrization. In accord with previous work we find that the burst efficiency depends on the structure of the primary galaxy. In particular, the presence of a massive stellar bulge stabilizes the disc and suppresses merger-driven star formation for large mass ratio mergers. Direct, coplanar merging orbits produce the largest tidal disturbance and yield the most intense burst of star formation. Contrary to naive expectations, a more compact distribution of gas or an increased gas fraction both decrease the burst efficiency. Owing to the efficient feedback model and the newer version of smoothed particle hydrodynamics employed here, the burst efficiencies of the mergers presented here are smaller than in previous studies.
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Cites
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Modelling feedback from stars and black holes in galaxy mergers
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Cited by
Physical Models of Galaxy Formation in a Cosmological Framework
Somerville, R. S., & Davé, R. (2015) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-082812-140951 · Cited by 1,442
Self-citationGuo, Q., White, S., Boylan-Kolchin, M., De Lucia, G., Kauffmann, G., Lemson, G., Li, C., Springel, V., & Weinmann, S. (2011) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2010.18114.x · Cited by 1,205
Dusty star-forming galaxies at high redshift
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Self-citationTHE 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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Metadata
- Authors
- Cox, T. J., Jonsson, P., Somerville, R. S., Primack, J. R., & Dekel, A.
- Venue
- Monthly Notices of the Royal Astronomical Society
- Publisher
- Oxford University Press (OUP)
- Published
- 2008-02
- Volume
- 384
- Issue
- 1
- Pages
- 386-409
- ISSN
- 0035-8711 (ISSN-L)
- 1365-2966
- OpenAlex
- W1994968723
- Cited by
- 493
- References
- 137
- FWCI
- 25.15
- Type
- journal article
- Language
- en
- Open access
- green
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