Astron. Astrophys. 336, 503-517 (1998)
From the previous investigation we can summarize as follows:
The clusters SL 666 and NGC 2098 are two populous young
clusters among those found frequent in the LMC. SL 666 is
observed in excellent conditions and the data given for this object
allowed better interpretation. The stellar component for both clusters
consists of early type stars with the brightest ones centrally
The age of NGC 2098 is yr, whereas for
SL 666 is yr.
The number counts show that the radial density distribution of
stars in both clusters exhibit a trend in their slopes with evidence
of mass segregation, in the sense that the heavier stars are centrally
The LFs show a similar trend with the slopes increasing radially
from the centre of the clusters. Therefore mass segregation is
observed and it is investigated whether this is a star formation
and/or dynamical phenomenon.
The dynamical parameters of SL 666 found from star count give
(from single mass models) a total mass of and
a lowest limit for the relaxation time yr.
SL 666 shows evidence of mass segregation due to the star
formation process. The disruption time of the cluster and its radial
profile implies that the cluster is bound and the star formation is
NGC 2098 is also a candidate, but we need to extrapolate
mag the results, and it is less certain until
we have better photometry to clear up this ambiguity.
The central densities of both clusters give evidence of a bound
system since their disruption times are at least 10 times their
© European Southern Observatory (ESO) 1998
Online publication: July 20, 1998