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Cited by 272

The DOI matches its Crossref record; 46 of the 46 references it cites were found in a registry or an index.

THE DRIVING MECHANISM OF STARBURSTS IN GALAXY MERGERS

Open access
Teyssier, Romain, Chapon, Damien, Bournaud, Frédéric·2010·The Astrophysical Journal
DOI 10.1088/2041-8205/720/2/l149
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Abstract

We present hydrodynamic simulations of a major merger of disk galaxies, and study the interstellar medium (ISM) dynamics and star formation (SF) properties. High spatial and mass resolutions of 12 pc and 4 × 10 4 M ☉ allow us to resolve cold and turbulent gas clouds embedded in a warmer diffuse phase. We compare lower-resolution models, where the multiphase ISM is not resolved and is modeled as a relatively homogeneous and stable medium. While merger-driven bursts of SF are generally attributed to large-scale gas inflows toward the nuclear regions, we show that once a realistic ISM is resolved, the dominant process is actually gas fragmentation into massive and dense clouds and rapid SF therein. As a consequence, SF is more efficient by a factor of up to ∼10 and is also somewhat more extended, while the gas density probability distribution function rapidly evolves toward very high densities. We thus propose that the actual mechanism of starburst triggering in galaxy collisions can only be captured at high spatial resolution and when the cooling of gas is modeled down to less than 10 3 K. Not only does our model reproduce the properties of the Antennae system, but it also explains the "starburst mode" recently revealed in high-redshift mergers compared to quiescent disks.

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Crossref · 10.1088/2041-8205/720/2/l149

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Metadata

Authors
Teyssier, R., Chapon, D., & Bournaud, F.
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
2010-08-17
Volume
720
Issue
2
Pages
L149-L154
ISSN
  • 2041-8205 (ISSN-L)
  • 2041-8213
DOI
10.1088/2041-8205/720/2/l149
OpenAlex
W2057101560
Cited by
272
References
46
FWCI
16.96
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: THE DRIVING MECHANISM OF STARBURSTS IN GALAXY MERGERS. https://app.cochat.ai/papers/10.1088/2041-8205/720/2/l149
The paper
Teyssier, R., Chapon, D., & Bournaud, F. (2010). THE DRIVING MECHANISM OF STARBURSTS IN GALAXY MERGERS. The Astrophysical Journal. https://doi.org/10.1088/2041-8205/720/2/l149

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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.