2020MNRAS.494..325P

Query : 2020MNRAS.494..325P

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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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
2 NAME 30 Dor Region reg 05 38.0 -69 06           ~ 261 0
3 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1498 0
4 NGC 3603 OpC 11 14 57.9 -61 14 32           ~ 1136 1
5 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
6 NAME Arches Cluster Cl* 17 45 50.5 -28 49 28           ~ 792 0
7 NAME Quintuplet Cluster OpC 17 46 13.9 -28 49 48           ~ 561 0

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