SIMBAD references

2020MNRAS.494..325P - Mon. Not. R. Astron. Soc., 494, 325-331 (2020/May-1)

Making top-heavy IMFs from canonical IMFs near the Galactic Centre.

PARK S.-M., GOODWIN S.P. and KIM S.S.

Abstract (from CDS):

We show that dynamical evolution in a strong (Galactic Centre-like) tidal field can create clusters that would appear to have very top-heavy initial mass functions (IMFs). The tidal disruption of single star-forming events can leave several bound 'clusters' spread along 20 pc of the orbit within 1-2 Myr. These surviving (sub)clusters tend to contain an overabundance of massive stars, with low-mass stars tending to be spread along the whole 'tidal arm'. Therefore, observing a cluster in a strong tidal field with a top-heavy IMF might well not mean the stars were formed with a top-heavy IMF.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): methods: numerical - stars: kinematics and dynamics - Galaxy: centre - open clusters and associations: general

Simbad objects: 7

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