The primary goal of this paper is to provide evidence that can prove true or false the hypothesis that dark matter in the Galactic halo can clump into stellar-mass compact objects. If such objects exist, they would act as lenses to external sources in the Magellanic Clouds, giving rise to an observable effect of microlensing. We present the results of our search for such events, based on data from the second phase of the OGLE survey (1996)(1997)(1998)(1999)(2000) towards the Small Magellanic Cloud (SMC). The data set we used comprises 2.1 million monitored sources distributed over an area of 2.4 deg 2 . We found only one microlensing event candidate, however its poor-quality light curve limited our discussion of the exact distance to the lensing object.
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Wyrzykowski et al. (2010) studied this question.
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