In New Astronomy Reviews, Volume 68, p. 1-33 (2015).
http://arxiv.org/abs/1508.06054

For a PDF version of the article, click here.

THE MODELLING OF FEEDBACK IN STAR FORMATION SIMULATIONS

James E. Dale


University Observatory / Excellence Cluster ‘Universe'
Scheinerstrasse 1, 81679 München, Germany


Abstract: I review the current state of numerical simulations of stellar feedback in the context of star formation at scales ranging from the formation of individual stars to models of galaxy formation including cosmic reionisation. I survey the wealth of algorithms developed recently to solve the radiative transfer problem and to simulate stellar winds, supernovae and protostellar jets. I discuss the results of these simulations with regard to star formation in molecular clouds, the interaction of different feedback mechanisms with each other and with magnetic fields, and in the wider context of galactic– and cosmological–scale simulations.


Keywords : Star formation; feedback; numerical simulations


Table of Contents

INTRODUCTION AND SCOPE OF THIS REVIEW

BRIEF INTRODUCTION TO STELLAR FEEDBACK PHYSICS
Photoionisation
Main-sequence line-driven winds
Stellar evolution
Supernovae
Accretion heating
Radiation pressure
Jets

BRIEF INTRODUCTION TO ASTROPHYSICAL FLUID DYNAMICS CODES
Grid codes
Particle codes
Moving-mesh codes

FEEDBACK ALGORITHMS
Radiative transfer algorithms
Winds
Jets and outflows
Supernovae
Galactic-scale models

WHAT WE HAVE LEARNED FROM INCLUDING FEEDBACK IN SIMULATIONS
Fragmentation, the IMF, and star formation rates and efficiencies
Gas expulsion and cloud destruction
Driving turbulence
Effects of different feedback mechanisms combined
Combining feedback and magnetic fields
Large–scale simulations

SUMMARY AND OUTLOOK

REFERENCES

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