  In the study of stars, the high energy domain occupies a place of choice,
since it is the only one able to directly probe the most violent phenomena:
indeed, young pre-main sequence objects, hot massive stars, or X-ray binaries
are best revealed in X-rays. However, previously available X-ray observatories
often provided only crude information on individual objects in the Magellanic
Clouds. The advent of the highly efficient X-ray facilities XMM-Newton and
Chandra has now dramatically increased the sensitivity and the spatial
resolution available to X-ray astronomers, thus enabling a fairly easy
determination of the properties of individual sources in the LMC.
