Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994exa.....4..279a&link_type=abstract
Experimental Astronomy (ISSN 0922-6435), vol. 4, no. 3-4, p. 279-296
Astronomy and Astrophysics
Astrophysics
11
Cameras, Charge Coupled Devices, Dark Matter, Galactic Halos, Gravitational Lenses, Missing Mass (Astrophysics), Analog Circuits, Control Equipment, Electronic Equipment, Magellanic Clouds, Signal Processing
Scientific paper
Our aim is the search for Massive Astrophysical Compact Halo objects (MACHOs) in the halo of our galaxy. A method to detect such objects was suggested by Paczynski (1986) using the gravitational microlensing effect, a brightening of stars when a MACHO passes near their line of sight. For this purpose one monitors for several months a large number of stars (approximately 105) in the Large Magellanic Cloud (LMC) in the outer reaches of the halo of our galaxy, with a frequent sampling of their brightness. This is achieved by placing a large area sensitive detector at the focal plane of a telescope. As such a detector was not available, we decided to build a large charge coupled device (CCD) camera.
Arnaud Monique
Aubourg Eric
Bareyre P.
Brehin S.
Caridroit R.
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