2023
DOI: 10.1017/pasa.2023.23
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The role of impact parameter in typical close galaxy flybys

Abstract: Close galaxy flybys, interactions during which two galaxies inter-penetrate, are frequent and can significantly affect the evolution of individual galaxies. Equal-mass flybys are extremely rare and almost exclusively distant, while frequent flybys have mass ratios q = 0.1 or lower, with a secondary galaxy penetrating deep into the primary. This can result in comparable strengths of interaction between the two classes of flybys and lead to essentially the same effects. To demonstrate this, emphasise and explore… Show more

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Cited by 3 publications
(1 citation statement)
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References 139 publications
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“…Long-lived non-axisymmetric structures can also form due to quick galaxy flybys (e.g. Pettitt & Wadsley, 2018;Mitrašinović & Micic, 2023), in which case the influence on the outskirts should be brief unless these interactions happen on inclined orbits and lead to the formation of warps (Kim et al, 2014). Cosmological and zoom-in simulations are possibly the best tool for studying these environmental effects and their influence on habitability.…”
Section: On the Concept Of A Ghzmentioning
confidence: 99%
“…Long-lived non-axisymmetric structures can also form due to quick galaxy flybys (e.g. Pettitt & Wadsley, 2018;Mitrašinović & Micic, 2023), in which case the influence on the outskirts should be brief unless these interactions happen on inclined orbits and lead to the formation of warps (Kim et al, 2014). Cosmological and zoom-in simulations are possibly the best tool for studying these environmental effects and their influence on habitability.…”
Section: On the Concept Of A Ghzmentioning
confidence: 99%