Searching for Dark Matter in the Galactic Halo by Using Microlensing Phenomenon | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 23, Issue 1, January 2012, Pages 93-108 | ||
| Author | ||
| Layth Mahmood Karim | ||
| Abstract | ||
| The presence of dark matter objects in the Galactic Halo has been investigated by using the light curves of two microlensing events toward Large Magellanic Cloud (LMC). These events have been detected by the Australian-American collaboration [MAssive Compact Halo Objects (MACHO)], and used for further calculations. Such investigation has been performed by determining the masses of the dark matter objects acting as lenses in the Halo of our own Galaxy in order to specify the most probable candidates of dark matter objects. Calculations of masses for these events are found to be in the range (0.036 – 1.1024) M. This mass range indicates that the most plausible candidates of dark matter objects in the Galactic Halo are brown dwarfs and white dwarfs, which are responsible on the occurrence of microlensing phenomenon. Furthermore, the microlensing parameters of light curves have been calculated and the results show a good agreement with the results of MACHO team. | ||
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