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astro-ph2004
Attacking the X-ray emission properties of young stars with the Sword of Orion
K. R. Briggs, M. Guedel, M. Audard +1
We present a survey of X-ray emission from young stars in the Sword of Orion star-formation region using XMM-Newton's EPIC detectors. We find over 850 X-ray sources, of which more…
astro-ph1998
Gravitational Microlensing by Globular Clusters
P. Jetzer, M. Strässle, U. Wandeler
Stars in globular clusters can act either as sources for MACHOs (Massive Astrophysical Compact Halo Objects) located along the line of sight or as lenses for more distant backgroun…