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arXiv · astro-ph/9409034

Gravitational Microlensing Results from Macho

W. Sutherland·C. Alcock·R. Allsman·T. Axelrod·D. Bennett·S. Chan·K. Cook·K. Freeman·K. Griest·S. Marshall·S. Perlmutter·B. Peterson·M. Pratt·P. Quinn·A. Rodgers·C. Stubbs
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Abstract

We provide a status report on our search for dark matter in our Galaxy in the form of massive compact halo objects (MACHOs), using gravitational microlensing of background stars. This search uses a very large CCD camera on the dedicated 1.27m telescope at Mt.~Stromlo, Australia, and has been taking data for 2 years. At present, we have analysed data for 8 million stars in the Large Magellanic Cloud over 1 year, resulting in one strong candidate event and two lower-amplitude candidates. We have also analysed 5 million stars in the Galactic Bulge for 0.5 years, yielding approximately 27 microlensing events.

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W. Sutherland, C. Alcock, R. Allsman, T. Axelrod, D. Bennett, S. Chan, K. Cook, K. Freeman, K. Griest, S. Marshall, S. Perlmutter, B. Peterson, M. Pratt, P. Quinn, A. Rodgers, C. Stubbs. 1994-09-14. Gravitational Microlensing Results from Macho. https://doi.org/10.1016/0920-5632(94)00772-n

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