Variability in the stellar initial mass function at high mass: coalescence models for starburst clusters

Details Variability in the stellar initial mass function at high mass: coalescence models for starburst clusters Variability in the stellar initial mass function at high mass: coalescence models for starburst clusters

2004-07-06

arxiv.org/abs/astro-ph/0407120v1

Astronomy and Astrophysics

Astrophysics

1 figure, accepted by MNRAS

Scientific paper

10.1111/j.1365-2966.2004.08188.x

A coalescence model using the observed properties of pre-stellar condensations (PSCs) shows how an initially steep IMF that might be characteristic of primordial cloud fragmentation can change into a Salpeter IMF or shallower IMF in a cluster of normal density after one dynamical time, even if the PSCs are collapsing on their own dynamical time. The model suggests that top-heavy IMFs in some starburst clusters originate with PSC coalescence.

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