A new model for including galactic winds in simulations of galaxy formation – I. Introducing the Physically Evolved Winds (PhEW) model

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dc.contributor.authorDave, Romeel
dc.contributor.authorHuang, Shuiyao
dc.contributor.authorKatz, Neal
dc.date.accessioned2021-02-09T09:58:59Z
dc.date.available2021-02-09T09:58:59Z
dc.date.issued2020-07-08
dc.description.abstractThe propagation and evolution of cold galactic winds in galactic haloes is crucial to galaxy formation models. However, modelling of this process in hydrodynamic simulations of galaxy formation is oversimplified owing to a lack of numerical resolution and often neglects critical physical processes such as hydrodynamic instabilities and thermal conduction. We propose an analytic model, Physically Evolved Winds, that calculates the evolution of individual clouds moving supersonically through a uniform ambient medium. Our model reproduces predictions from very high resolution cloud-crushing simulations that include isotropic thermal conduction over a wide range of physical conditions. We discuss the implementation of this model into cosmological hydrodynamic simulations of galaxy formation as a subgrid prescription to model galactic winds more robustly both physically and numerically.en_US
dc.identifier.citationDave, R; Huang, S; Katz, N. 2020. A new model for including galactic winds in simulations of galaxy formation – I. Introducing the Physically Evolved Winds (PhEW) model. Monthly Notices of the Royal Astronomical Society. 497(3):2586-2604en_US
dc.identifier.uri:10.1093/mnras/staa1978
dc.identifier.urihttp://hdl.handle.net/10566/5873
dc.language.isoenen_US
dc.publisherOxford University Pressen_US
dc.subjectgalaxies: evolution.en_US
dc.subjectmethods: analyticalen_US
dc.subjecthydrodynamicsen_US
dc.titleA new model for including galactic winds in simulations of galaxy formation – I. Introducing the Physically Evolved Winds (PhEW) modelen_US
dc.typeArticleen_US

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