Triggering, suppressing and redistributing star formation
James E. Dale, Barbara Ercolano, Ian Bonnell
TL;DR
This paper explores how stellar feedback can trigger, suppress, or redistribute star formation within molecular clouds, using detailed simulations to demonstrate these effects can occur simultaneously, complicating interpretations.
Contribution
It provides a detailed simulation-based analysis showing that stellar feedback can have multiple, concurrent effects on star formation in the same environment.
Findings
Feedback can trigger new star formation.
Feedback can suppress existing star formation.
Feedback can redistribute stellar populations.
Abstract
We discuss three different ways in which stellar feedback may alter the outcome of star cluster formation: triggering or suppressing star formation, and redistributing the stellar population in space. We use detailed Smoothed Particle Hydrodynamics (SPH) simulations of HII regions in turbulent molecular clouds to show that all three of these may happen in the same system, making inferences about the effects of feedback problematic.
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