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MACHOs in M31? Absence of evidence but not evidence of absence
Jelte T. A. de Jong, Lawrence M. Widrow, Patrick Cseresnjes +9
We present results of a microlensing survey toward the Andromeda Galaxy (M31) carried out during four observing seasons at the Isaac Newton Telescope (INT). This survey is part of…
Microlensing in M31; Preliminary lightcurves from MEGA
Jelte de Jong, Penny D. Sackett, Konrad Kuijken +3
One of the possible astrophysical solutions to the galactic dark matter problem is the presence of a significant amount of ``dark'' compact objects (MACHOs) in galactic dark matter…
Search for High Proper Motion White Dwarfs
Jelte de Jong, Konrad Kuijken, Mark Neeser
Recent results of microlensing surveys, show that 10-20% of the dark halo mass of the Milky Way consists of compact objects. The masses of these compact objects range from 0.1 to 1…